Chindesaurus ( / ˌ tʃ ɪ n d ɪ ˈ s ɔːr ə s / CHIN -diss- OR -əs ) is an extinct genus of basal saurischian dinosaur from the Late Triassic (213-210 million years ago ) of the southwestern United States . It is known from a single species, C. bryansmalli , based on a partial skeleton recovered from Petrified Forest National Park in Arizona . The original specimen was nicknamed "Gertie", and generated much publicity for the park upon its discovery in 1984 and airlift out of the park in 1985. Other fragmentary referred specimens have been found in Late Triassic sediments throughout Arizona, New Mexico , and Texas , but these may not belong to the genus. Chindesaurus was a bipedal carnivore , approximately as large as a wolf .
87-433: Chindesaurus 's classification is debated, and various papers have had different conclusions on its affinities. Its fossils were originally believed to belong to " prosauropods " (basal sauropodomorphs ), but its original description and numerous subsequent papers argued that it was a herrerasaurid or herrerasaurian. A 2019 redescription of its holotype considered Chindesaurus to be a theropod closely related to Tawa ,
174-410: A chevron , and rib fragments. Each of the three bones making up the hip (the ilium , pubis , and ischium ) are represented by isolated fragments. Leg bones include a complete right femur , the upper part of the left femur, an incomplete right tibia , and a right astragalus bone of the ankle. A single serrated tooth has also been considered as part of the specimen, but this may be in error. When
261-433: A B-36 accidentally dropped a Mark 17 nuclear bomb 4.5 miles from the control tower while landing at Kirtland Air Force Base . Only the conventional trigger detonated, as the bomb was unarmed. These incidents were not reported as they were classified as secret for decades. Following the end of World War II , population shifts as well as suburban development, urban sprawl and gentrification, Albuquerque's downtown entered
348-575: A cultural area and center of commerce. It is referred to as " Old Town Albuquerque " or simply "Old Town". Historically it was sometimes referred to as "La Placita" ( Little Plaza in Spanish). On the north side of Old Town Plaza is San Felipe de Neri Church . Built in 1793, it is one of the oldest surviving buildings in the city. After the New Mexico Territory became a part of the United States in
435-491: A decade later by Long & Murry (1995), they regarded it as a herrerasaurid . This interpretation has been followed by many paleontologists since then, often supported by phylogenetic analyses . Nesbitt et al. (2007) and Irmis et al . (2007) argued that Chindesaurus was a probable basal saurischian dinosaur, and noted that it shares a wide range of characteristics with several lineages of basal saurischians, making any classification problematic. Rauhut (2003) noted that
522-501: A famous symbol of the city for decades. Outdated, it was razed in 1970 and the site was converted to a parking lot. In 2002, the Alvarado Transportation Center was built on the site in a style resembling the old landmark. The large metro station functions as the downtown headquarters for the city's transit department. It also serves as an intermodal hub for local buses, Greyhound buses, Amtrak passenger trains, and
609-706: A framework for a more balanced and sustainable approach to urban growth. Urban sprawl is limited on three sides—by the Sandia Pueblo to the north, the Isleta Pueblo and Kirtland Air Force Base to the south, and the Sandia Mountains to the east. Suburban growth continues at a strong pace to the west, beyond the Petroglyph National Monument, once thought to be a natural boundary to sprawl development. Because of less-costly land and lower taxes, much of
696-429: A groove at the top of its femoral head, possesses a trochanteric shelf, and has a dorsolateral trochanter which is low and rounded, traits which contrast with Tawa . The fourth trochanter is low and located further distally than that of Herrerasaurus . The lower end of the femur has two distinct condyles which are triangular in cross-section. The tibia is very similar to that of Tawa in several respects. For example,
783-430: A herrerasaurid. The rear side of the first sacral has a vertical ridge extending up to a large pit, which may be a hypantrum . Large sacral ribs extend outwards from the front half of each sacral vertebrae. The sacral ribs have an inverted T-shaped cross-section when seen from the side. The caudal (tail) vertebrae are large at the base of the tail and elongated towards the tip of the tail. Several low ridges extend towards
870-550: A hotel. Many Anglo merchants, mountain men, and settlers slowly filtered into Albuquerque, creating a major mercantile commercial center in Downtown Albuquerque . From this commercial center on July 4, 1882, Park Van Tassel became the first to fly a balloon in Albuquerque with a landing at Old Town. This was the first balloon flight in the New Mexico Territory. Due to a rising rate of violent crime, gunman Milt Yarberry
957-454: A large roughly-textured tubercle on its outer surface. These characteristics are also known in Caseosaurus . There is no distinct brevis fossa, also like Caseosaurus and herrerasaurids. Both the pubic and ischiadic peduncles of the ilium expand lengthwise towards their lower edges. Unlike herrerasaurids, the supraacetabular crest of the ilium does not extend as far forwards as its contact with
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#17328844502361044-697: A partial ilium first described in 1927. It was recovered from the Carnian?-age Tecovas Formation of Texas, and now housed at the University of Michigan (UMMP) in Ann Arbor, MI . However, UMMP 8870 may represent a separate species of early dinosaur, Caseosaurus crosbyensis . The referred Texas specimens of Chindesaurus were at one point believed to be the oldest dinosaur fossils in the world. Though specimens referred to Chindesaurus are widely distributed and sometimes well-preserved, none of them exhibit features unique to
1131-479: A period of decline. Many historic buildings were razed in the 1960s and 1970s to make way for new plazas, high-rises, and parking lots as part of the city's urban renewal phase. As of 2010 , only recently has Downtown Albuquerque come to regain much of its urban character, mainly through the construction of many new loft apartment buildings and the renovation of historic structures such as the KiMo Theater . During
1218-553: A series of floods in the 1950s, passage of the "Arroyo Flood Control Act of 1963" provided for the construction of a series of concrete diversion channels. The network of channels was built by the Army Corps of Engineers during the 1960s and early 1970s. Iconic urban wildlife includes the roadrunner , Gunnison's prairie dog , coyote , and New Mexico whiptail lizard. The bosque is a popular destination for wildlife viewing, with opportunities to see porcupines and sandhill cranes in
1305-616: A slightly smaller dinosaur known from the Hayden Quarry of Ghost Ranch , New Mexico. Although many specimens have been referred to Chindesaurus , only one specimen has enough material to remain within the genus with certainty. This specimen, holotype PEFO 10395, is a partial skeleton, found within Petrified Forest National Park in Apache County , Arizona . PEFO 10395 was discovered in 1984 by Bryan Small, who recovered
1392-442: A stout body, long legs, a fairly long neck, and a total estimated length of 3 to 4 meters (9.9 to 13.1 feet). Benson & Brusatte (2012) suggested that Chindesaurus was smaller, up to 2 to 2.3 metres (6.6 to 7.5 ft) in length. Holtz (2012) estimated that Chindesaurus had a length of about 2 meters (6.6) feet and a weight equivalent to that of a wolf (23–45 kg, or about 50-100 pounds). The skeletal anatomy of Chindesaurus
1479-427: A system of pits, ridges, and depressions which connect to the tibia. Chindesaurus has been difficult to classify, and has been recovered in several different positions at the base of the saurischian family tree. When it was first discovered in 1984, the fossil specimen which would eventually be named Chindesaurus was thought to be a " prosauropod " ( basal sauropodomorph ). When it was finally described and named
1566-449: A valid herrerasaurian taxon closely related to, but not within, the family Herrerasauridae , in the larger clade Herrerasauria. An analysis by Novas et al. (in 2021) also placed Chindesaurus as a non-herrerasaurid herrerasaurian, forming a clade with Daemonosaurus and Tawa (also see below) The following is a cladogram based on the phylogenetic analysis by Sues et al. (2011), one of many studies which argued that Chindesaurus
1653-483: Is a family of plateosaurian sauropodomorphs from the Late Triassic of Europe , Greenland , Africa and Asia . Although several dinosaurs have been classified as plateosaurids over the years, the family Plateosauridae is now restricted to Plateosaurus , Yimenosaurus , Euskelosaurus , and Issi . In another study, Yates (2003) sunk Sellosaurus into Plateosaurus (as P. gracilis ). Gresslyosaurus
1740-407: Is a herrerasaurid . Ornithischia [REDACTED] Sauropodomorpha [REDACTED] Staurikosaurus Herrerasaurus [REDACTED] Chindesaurus [REDACTED] Eoraptor Daemonosaurus [REDACTED] Tawa [REDACTED] Neotheropoda [REDACTED] A phylogenetic analysis by Cabreira et al. (2016) found an unusual result, where Chindesaurus was placed as
1827-715: Is also a Laotian American temple and a sizable community in parts of this area as well as around Uptown. There is also an African American community around Highland. The Four Hills neighborhoods are located in and around the foothills on the outskirts of Southeast Albuquerque. The vast newer subdivision of Volterra lies west of the Four Hills area. Popular urban neighborhoods that can be found in Southeast Albuquerque include Nob Hill , Ridgecrest, Parkland Hills, Hyder Park, and University Heights. Traditionally consisting of agricultural and rural areas and suburban neighborhoods,
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#17328844502361914-667: Is alternatively considered its own genus or a synonym of Plateosaurus . Plateosauridae, which was first named by Othniel Charles Marsh in 1895, is a stem-based taxon and it was defined by Sereno, 1998 as all animals more closely related to Plateosaurus engelhardti than to Massospondylus carinatus . Galton and Upchurch, 2004 proposed the following definition: all animals more closely related to Plateosaurus engelhardti than to Massospondylus carinatus and Yunnanosaurus huangi . Yates, 2007 defined it as all animals more closely related to Plateosaurus engelhardti than to Diplodocus longus . Recent cladistic analyses suggest that
2001-463: Is celebrated at the park every year. "Gertie" was described and given a proper binomial name by R.A. Long and P.A. Murry in 1995 . It was also initially known as the "Chinde Point dinosaur", in reference to a geological landmark close to the site which it was recovered from. This reference was carried over to its generic name , derived from the Navajo word chindi (meaning "ghost" or "evil spirit") and
2088-487: Is divided by two notches. It was also supported by the absence of an oblique ligament sulcus on the rear of the femoral head, a low cnemial crest and prominent posterolateral process of the tibia, and a low astragalus with a prominent anterior groove. The authors noted that two right tibiae from the Cooper Canyon Formation may be referable to this clade based on their possession of two notches on posterior margin of
2175-463: Is incompletely known, so these full body estimates are very rough approximations. The holotype specimen may not be fully grown due to its unfused ankle and dorsal neurocentral sutures . However, these features may not be fully correlated with development in early dinosaurs, and the specimen has other traits indicating a post-juvenile stage, such as a trochanteric shelf and fused caudal neurocentral sutures. The cervical (neck) vertebrae , at least near
2262-703: Is land and 1.8 square miles (4.7 km ) , or 0.96%, is water. Albuquerque lies within the fertile Rio Grande Valley with its Bosque forest, in the center of the Albuquerque Basin , flanked on the eastern side by the Sandia Mountains and to the west by the West Mesa . Located in central New Mexico, the city also has noticeable influences from the adjacent Colorado Plateau semi-desert, New Mexico Mountains forested with juniper and pine, and Southwest plateaus and plains steppe ecoregions, depending on where one
2349-551: Is located in north-central New Mexico. To its east are the Sandia–Manzano Mountains . The Rio Grande flows north to south through its center, while the West Mesa and Petroglyph National Monument make up the western part of the city. Albuquerque has one of the highest elevations of any major city in the U.S., ranging from 4,900 feet (1,500 m) above sea level near the Rio Grande to over 6,700 feet (2,000 m) in
2436-528: Is located. Albuquerque has one of the highest and most varied elevations of any major city in the United States, though the effects of this are greatly tempered by its southwesterly continental position. The elevation of the city ranges from 4,949 feet (1,508 m) above sea level near the Rio Grande (in the Valley) to 6,165 feet (1,879 m) in the foothill areas of Sandia Heights . At
2523-514: The Albuquerque Basin , the city is flanked by the Sandia Mountains to the east and the West Mesa to the west, with the Rio Grande and bosque flowing north-to-south through the middle of the city. According to the 2020 census , Albuquerque had 564,559 residents, making it the 32nd-most populous city in the United States and the fourth largest in the Southwest . The Albuquerque metropolitan area had 955,000 residents in 2023, and forms part of
2610-594: The Albuquerque International Sunport , the elevation is 5,355 feet (1,632 m) above sea level. The Rio Grande is classified, like the Nile , as an "exotic" river. The New Mexico portion of the Rio Grande lies within the Rio Grande Rift Valley, bordered by a system of faults , including those that lifted up the adjacent Sandia and Manzano Mountains , while lowering the area where
2697-758: The Albuquerque–Santa Fe–Los Alamos combined statistical area , which had a population of 1,162,523. Albuquerque is a hub for technology, fine arts, and media companies . It is home to several historic landmarks , the University of New Mexico , the Albuquerque International Balloon Fiesta , the Gathering of Nations , the New Mexico State Fair , and a diverse restaurant scene , which features both New Mexican and global cuisine . Petroglyphs carved into basalt in
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2784-545: The Chinle Formation was an ancient floodplain where phytosaurs , rauisuchids , archosaurs , pseudosuchians , and other tetrapods lived and competed with the dinosaur Chindesaurus and its relative Coelophysis for resources. This paleoenvironment also had abundant lungfish and clams . [REDACTED] [REDACTED] [REDACTED] [REDACTED] [REDACTED] [REDACTED] [REDACTED] [REDACTED] Prosauropod Plateosauridae
2871-659: The Civil War , Albuquerque was occupied for a month in February 1862 by Confederate troops under General Henry Hopkins Sibley . He soon afterward advanced with his main body into northern New Mexico. During his retreat from Union troops into Texas , he made a stand on April 8, 1862, and fought the Battle of Albuquerque against a detachment of Union soldiers commanded by Colonel Edward R. S. Canby . This daylong engagement at long range led to few casualties. The residents of Albuquerque aided
2958-490: The Duke City , is the most populous city in the U.S. state of New Mexico . Founded in 1706 as La Villa de Alburquerque by Santa Fe de Nuevo México governor Francisco Cuervo y Valdés , and named in honor of Francisco Fernández de la Cueva, 10th Duke of Alburquerque and Viceroy of New Spain , it served as an outpost on El Camino Real linking Mexico City to the northernmost territories of New Spain . Located in
3045-575: The Greek word "sauros" (σαυρος) (meaning "lizard"). Its name could therefore be translated as "ghost lizard" or "Lizard from Chinde Point". The specific name , bryansmalli , honors the discoverer, Bryan Small. Several more incomplete specimens have been referred to the genus. These specimens consist of various vertebrae and femur fragments found throughout the American southwest. Eight referred specimens are stored at PEFO (Petrified Forest National Park, AZ), where
3132-574: The Maxwell Museum of Anthropology , University of New Mexico , the Uptown area, which includes three shopping malls ( Coronado Center , ABQ Uptown, and Winrock Town Center ), Hoffmantown, Journal Center, and Cliff's Amusement Park are all in this quadrant. Some of the most affluent neighborhoods in the city are here, including: High Desert , Tanoan, Sandia Heights, and North Albuquerque Acres. Parts of Sandia Heights and North Albuquerque Acres are outside
3219-544: The Rail Runner commuter rail line. In the early days of transcontinental air service, Albuquerque was an important stop on many transcontinental air routes, earning it the nickname "Crossroads of the Southwest". During the early 20th century, New Mexico's dry climate attracted many tuberculosis patients to the city in search of a cure; this was before penicillin was found to be effective. Several sanitaria were developed on
3306-459: The Rio Puerco confluence south of Belen . Of these, 12 or 13 were densely clustered near present-day Bernalillo , and the remainder were spread out to the south. Two Tiwa pueblos lie on the outskirts of present-day Albuquerque. Both have been continuously inhabited for many centuries: Sandia Pueblo was founded in the 14th century, and Pueblo of Isleta is documented in written records since
3393-475: The West Mesa to serve TB patients. Presbyterian Hospital and St. Joseph Hospital, two of the largest hospitals in the Southwest, had their beginnings during this period. Influential New Deal –era governor Clyde Tingley and famed Southwestern architect John Gaw Meem were among those who came to New Mexico seeking recovery from TB. The first travelers on Route 66 appeared in Albuquerque in 1926. Soon dozens of motels, restaurants, and gift shops sprouted along
3480-702: The cladogram below: Chromogisaurus Pampadromaeus Panphagia Saturnalia Guaibasaurus Pantydraco Thecodontosaurus Efraasia Plateosauravus Ruehleia Macrocollum Unaysaurus Issi Plateosaurus gracilis Plateosaurus trossingensis Riojasaurus Eucnemosaurus Massopoda [REDACTED] [REDACTED] [REDACTED] [REDACTED] [REDACTED] [REDACTED] [REDACTED] Albuquerque, New Mexico Albuquerque ( / ˈ æ l b ə k ɜːr k i / AL -bə-kur-kee ; Spanish: [alβuˈkeɾke] ), also known as ABQ , Burque , and
3567-411: The prezygapophyses at the front of the distal caudal vertebra. The prezygapophyses themselves are fairly short, unlike those of herrerasaurids or most theropods. A neural spine rises up abruptly in the last third of each caudal. Chevrons curve backwards and are thinnest at their mid-length. The postacetabular process (rear blade) of the ilium is low, with a horizontal ridge on its inner edge and
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3654-466: The 21st century, Albuquerque's population has continued to grow rapidly. The population of the city proper was estimated at 564,559 in 2020, 528,497 in 2009, and 448,607 in the 2000 census. During 2005 and 2006, the city celebrated its tricentennial with a diverse program of cultural events. The passage of the Planned Growth Strategy in 2002–2004 was the community's strongest effort to create
3741-605: The Hayden Quarry of Ghost Ranch, NM, where it is now stored. Though most specimens referred to Chindesaurus hail from Norian -age formations of Arizona and New Mexico, there are exceptions: TMM 31100-523, which consists of a proximal femur, was discovered in the Carnian -age Colorado City Formation of Texas . It is currently housed in the collections of the Texas Memorial Museum in Austin, TX . A similar case involves UMMP 8870,
3828-655: The Max Q commercial district, Albuquerque International Sunport , American Society of Radiologic Technologists , Central New Mexico Community College , UNM South Campus , Presbyterian Hospital Duke City BMX, University Stadium , Rio Grande Credit Union Field at Isotopes Park , The Pit , Mesa del Sol , Isleta Amphitheater , Netflix Studios , Isleta Resort & Casino, the National Museum of Nuclear Science & History , New Mexico Veterans Memorial, and Talin Market are all located in
3915-610: The Republican Union to rid the city of the occupying Confederate troops. When the Atchison, Topeka and Santa Fe Railroad arrived in 1880, it bypassed the Plaza, locating the passenger depot and railyards about 2 miles (3 km) east in what quickly became known as New Albuquerque or New Town. The railway company built a hospital for its workers that was later used as a juvenile psychiatric facility. It has since been converted to
4002-507: The Sandia foothills in the east. The Rio Grande's bosque has been significantly reduced and its natural flood cycle disrupted by dams built further upstream. A corridor of bosque surrounding the river within the city has been preserved as Rio Grande Valley State Park . A few remaining natural arroyos provide riparian habitat within the city, though natural arroyos draining into the Rio Grande have largely been replaced with concrete channels. After
4089-575: The Southeast quadrant of Albuquerque. The southern half of the International District lies along Central Ave and Louisiana Blvd. Here, many immigrant communities have settled and thrive, having established numerous businesses. Albuquerque's Vietnamese American community is partly business-centered in this area, as well as the Eubank, Juan Tabo, and Central areas, and other parts of Albuquerque. There
4176-538: The Southwest quadrant comprises the south-end of Downtown Albuquerque, the Barelas neighborhood, the rapidly growing west side, and the community of South Valley, New Mexico , often called "The South Valley". The quadrant extends all the way to the Isleta Indian Reservation. Newer suburban subdivisions on the West Mesa near the southwestern city limits join homes of older construction, some dating as far back as
4263-415: The U.S. Census. By 1990, it was 384,736 and in 2007 it was 518,271. In June 2007, Albuquerque was listed as the sixth fastest-growing city in the United States. In 1990, the U.S. Census Bureau reported Albuquerque's population as 34.5% Hispanic and 58.3% non-Hispanic white. On April 11, 1950, a USAF B-29 bomber carrying a nuclear weapon crashed into a mountain near Manzano Base . On May 22, 1957,
4350-401: The area, such as Barelas , Corrales , Isleta Pueblo , Los Ranchos , and Sandia Pueblo . After gaining independence in 1821, Mexico established a military presence here. The town of Alburquerque was built in the traditional Spanish villa pattern: a central plaza surrounded by government buildings, homes, and a church. This central plaza area has been preserved and is open to the public as
4437-557: The city into quadrants. This quadrant has been experiencing a housing expansion since the late 1950s. It abuts the base of the Sandia Mountains and contains portions of the foothills neighborhoods, which are significantly higher in elevation than the rest of the city. Running from Central Ave and the Railrunner tracks to the Sandia Peak Aerial Tram , this is the largest quadrant both geographically and by population. Martineztown,
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#17328844502364524-545: The city limits proper. A few houses in the farthest reach of this quadrant lie in the Cibola National Forest , just over the line into Sandoval County . This quadrant contains historic Old Town Albuquerque , which dates to the 18th century, as well as the Indian Pueblo Cultural Center . The area has a mixture of commercial districts and low to high-income neighborhoods. Northwest Albuquerque includes
4611-476: The city to make an annual holiday snowman. Albuquerque is geographically divided into four unequal quadrants that are officially part of mailing addresses, placed immediately after the street name. They are Northeast (NE), Northwest (NW), Southeast (SE), and Southwest (SW). Albuquerque's official quadrant system uses Central Ave for the north–south division and the railroad tracks for the east–west division. I-25 and I-40 are also sometimes used informally to divide
4698-426: The clade Prosauropoda , which was named by Huene in 1920 and was defined by Sereno, 1998 as all animals more closely related to Plateosaurus engelhardti than to Saltasaurus loricatus , is a synonym of Plateosauridae as both contain the same taxa. Plateosauridae was recovered as a monophyletic group in the large phylogenetic analysis of early dinosaurs that was presented by Baron, Norman & Barrett (2017) in
4785-539: The early 17th century. It was then chosen as the site of the San Agustín de la Isleta Mission , a Catholic mission . The historic Navajo , Apache , and Comanche peoples were likely to have set camps in the Albuquerque area, as there is evidence of trade and cultural exchange among the different Native American groups going back centuries before European arrival. Albuquerque was founded in 1706 as an outpost as La Villa de Alburquerque by Francisco Cuervo y Valdés in
4872-632: The foothill areas of Sandia Heights and Glenwood Hills. The civic apex is found in an undeveloped area within the Albuquerque Open Space; there, the terrain rises to an elevation of approximately 6,880 feet (2,100 m), and the metropolitan area's highest point is Sandia Crest at an altitude of 10,678 feet (3,255 m). According to the United States Census Bureau , Albuquerque has a total area of 189.5 square miles (490.9 km ) , of which 187.7 square miles (486.2 km )
4959-529: The genus. The referral of two specimens (NMMNH P16656 and NMMNH P17325) to Chindesaurus came under question as soon as 2007. Marsh et al. (2019) argued that only the holotype specimen of Chindesaurus should be considered as belonging to the genus. They removed all specimens except for the holotype from the genus, placing the rest as indeterminate material from the Chindesaurus + Tawa clade of their analysis. Long & Murry reconstructed Chindesaurus with
5046-626: The green is due to large swaths of conifer forests. However, Robert Julyan notes in The Place Names of New Mexico , "the most likely explanation is the one believed by the Sandia Pueblo Indians: the Spaniards, when they encountered the Pueblo in 1540, called it Sandia, because they thought the squash growing there were watermelons, and the name Sandia soon was transferred to the mountains east of
5133-745: The growth in the metropolitan area is taking place outside of the city of Albuquerque itself. In Rio Rancho to the northwest, the communities east of the mountains, and the incorporated parts of Valencia County , population growth rates approach twice that of Albuquerque. The primary cities in Valencia County are Los Lunas and Belen , both of which are home to growing industrial complexes and new residential subdivisions. The mountain towns of Tijeras , Edgewood , and Moriarty , while close enough to Albuquerque to be considered suburbs, have experienced much less growth compared to Rio Rancho, Bernalillo, Los Lunas, and Belen. Limited water supply and rugged terrain are
5220-450: The head, had a low keel along the front half of their lower edge. They also had a pair of shallow oval-shaped depressions on their sides, similar to those found in Tawa , Liliensternus , and Cryolophosaurus . The dorsal (trunk) vertebrae are deep, wide, and fairly short (from front-to-back), closer to the condition in herrerasaurids rather than Tawa and coelophysoids . Both the sides and
5307-538: The holotype specimen was discovered, it was nicknamed "Gertie" (after Gertie the Dinosaur ) and received much publicity. "Gertie" was subsequently airlifted by helicopter on June 6, 1985, and brought to the University of California Museum of Paleontology (UCMP) in Berkeley, CA , where it was prepared over the next several years. The anniversary of the airlift and the media interest it generated for Petrified Forest National Park
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#17328844502365394-628: The holotype was discovered. Two are stored at the UCMP (University of California Museum of Paleontology), where the holotype was prepared. Up to six more are stored at the New Mexico Museum of Natural History and Science (NMMNH) in Albuquerque, NM , with at least several of them having been discovered in the Bull Canyon Formation of New Mexico . A complete femur, GR 226, was discovered in 2006 at
5481-461: The journal Nature . In this analysis, the group was found to be sister to Massopoda within the clade Plateosauria . The 2021 study by Beccari et al . describing Issi saaneq recovered it as the sister taxon of Plateosaurus . Their phylogenetic analyses also recovered Macrocollum and Unaysaurus within the Plateosauridae. The results of their phylogenetic analyses are shown in
5568-581: The largest section of Downtown , Rio Grande Nature Center State Park and the Bosque ("woodlands"), Petroglyph National Monument, Double Eagle II Airport , the Paradise Hills neighborhood, Taylor Ranch, and Cottonwood Mall . This quadrant also contains the North Valley settlement, outside the city limits, which has some expensive homes and small ranches along the Rio Grande . The city of Albuquerque engulfs
5655-432: The life-sustaining Rio Grande now flows. Albuquerque lies in the Albuquerque Basin , a portion of the Rio Grande rift . The Sandia Mountains are the predominant geographic feature visible in Albuquerque. Sandía is Spanish for " watermelon ", and is popularly believed to be a reference to the brilliant pink and green coloration of the mountains at sunset. The pink is due to large exposures of granodiorite cliffs, and
5742-649: The lower edge of each dorsal are constricted, and small pockets lie below the sutures with the neural arch . These pockets, known as centro diapophyseal fossae , are ancestral to dinosaurs but lost by most theropods . Neural spines expand outwards and backwards, forming "spine-tables", structures which are otherwise only observed in Herrerasaurus and Dilophosaurus among potential theropods. The two preserved sacral (hip) vertebrae are wide and not fused to each other. The assumption that Chindesaurus had only two sacrals has been vital to its traditional identity as
5829-479: The main limiting factors for development in these towns. The Mid Region Council of Governments (MRCOG), which includes constituents from throughout the Albuquerque area, was formed to ensure that these governments along the middle Rio Grande would be able to meet the needs of their rapidly rising populations. MRCOG's cornerstone project is currently the New Mexico Rail Runner Express . Albuquerque
5916-475: The medially expanded brevis shelf of Chindesaurus resembles that of "crurotarsans" ( pseudosuchians ), unlike that of most dinosaurs, which is usually laterally expanded. A partial ilium originally assigned to Chindesaurus , from the Tecovas Formation of Texas , was later placed in its own genus and species, Caseosaurus crosbyensis , by Hunt et al. (1998). Langer (2004) argued that this separation
6003-575: The mid-19th century, a federal garrison and quartermaster depot, the Post of Albuquerque, were established here, operating from 1846 to 1867. In Beyond the Mississippi (1867), Albert D. Richardson , traveling to California via coach, passed through Albuquerque in late October 1859—its population was 3,000 at the time—and described it as "one of the richest and pleasantest towns, with a Spanish cathedral and other buildings more than two hundred years old." During
6090-518: The old route now have brown, historical highway markers denoting it as Pre-1937 Route 66. The establishment of Kirtland Air Force Base in 1939, Sandia Base in the early 1940s, and Sandia National Laboratories in 1949, would make Albuquerque a key player of the Atomic Age. Meanwhile, the city continued to expand outward into the Northeast Heights, reaching a population of 201,189 by 1960 per
6177-492: The provincial kingdom of Santa Fe de Nuevo México . The settlement was named after the original town of Viceroy Francisco Fernández de la Cueva , 10th duke of Alburquerque , who was from Alburquerque, Badajoz in southwest Spain. Albuquerque developed primarily for farming and sheep herds. It was a strategically located trading and military outpost along the Camino Real . It served other Tiquex and Hispano towns settled in
6264-550: The proximal tibia. Guaibasaurus may also belong to the clade based on its tapering posterolateral process of the distal end of the tibia. The following cladogram represents the phylogenetic analysis of Marsh et al. (2019), recovering a Chindesaurus + Tawa clade in basal Theropoda: Ornithischia [REDACTED] Sauropodomorpha [REDACTED] Herrerasauridae [REDACTED] Tawa [REDACTED] Chindesaurus Eodromaeus Neotheropoda [REDACTED] The Upper Petrified Forest National Park member of
6351-433: The pubis. The pubis is thin, straight, and slightly curved back, widening slightly towards the ilium. On the other hand, the ischium seems to widen slightly away from the ilium. The femur is large and sigmoid, with a smooth, rectangular femoral head. Like Tawa (but unlike coelophysoids), the anterior trochanter has the appearance of a bulbous ridge, not separated from the shaft by a cleft. However, Chindesaurus lacks
6438-750: The pueblo." He also notes that the Sandia Pueblo Indians call the mountain Bien Mur , "Big Mountain." Albuquerque lies at the northern edge of the Chihuahuan Desert transitioning into the Colorado Plateau . The Sandia Mountains represent the northern edge of the Arizona/New Mexico Mountains ecoregion . The environments of Albuquerque include the Rio Grande bosque , (floodplain cottonwood forest), arid scrub, and mesas that turn into
6525-425: The rear face of the upper end of the tibia is nearly straight, with the exception of a large notch on its medial half and a smaller notch slightly lateral to it. Moreover, the cnemial crest running down the front of the tibia is quite low, <35% the total anteroposterior thickness of the bone. Finally, the lower end of the tibia has a large and triangular posterolateral process which extends downwards and outwards from
6612-415: The rest of the bone, a trait also shared by Lesothosaurus and Guaibasaurus . The front edge of the astragalus has a deep and broad cleft which subdivides the bone vertically. This cleft actually extends onto the lower surface of the bone, giving it a characteristic "glutealiform" shape shared with Tawa . There is a distinct ascending process on the upper and outer part of the astragalus, surrounded by
6699-510: The roadside to serve them. Route 66 originally ran through the city on a north–south alignment along Fourth Street. In 1937 it was realigned along Central Avenue , a more direct east–west route. The intersection of Fourth and Central downtown was the principal crossroads of the city for decades. The majority of the surviving structures from the Route 66 era are on Central, though there are also some on Fourth. Signs between Bernalillo and Los Lunas along
6786-478: The sister taxon of Tawa hallae , a carnivorous dinosaur from the Hayden Quarry of Ghost Ranch in New Mexico . Tawa lived at roughly the same time as the holotype specimen of Chindesaurus , and material referred to Chindesaurus has also been found at the Hayden Quarry. Though Chindesaurus was often considered a herrerasaurid and Tawa was often considered a theropod, this study suggested that neither position
6873-587: The skeleton from a blue mudstone layer in the Chinle Formation 's Upper Petrified Forest Member. Based on U-Pb dating of overlying and underlying units, the mudstone layer was deposited about 213 to 210 million years ago, during the Norian stage of the Triassic . PEFO 10395 mainly consists of vertebrae , limb bones, and hip fragments. Vertebrae include several partial cervical (neck) dorsal (back), and caudal (tail) vertebrae, along with two sacral (hip) vertebrae,
6960-611: The village of Los Ranchos de Albuquerque . A small portion of the rapidly developing area on the west side of the river south of the Petroglyphs, known as the " West Mesa " or "Westside", consisting primarily of traditional residential subdivisions, also extends into this quadrant. The city proper is bordered on the north by the North Valley, the village of Corrales , and the city of Rio Rancho . Kirtland Air Force Base , Sandia National Laboratories , Sandia Science & Technology Park,
7047-530: The western part of the city bear testimony to a Native American presence in the area dating back many centuries. These are preserved in the Petroglyph National Monument . The Tanoan and Keresan peoples had lived along the Rio Grande for centuries before European colonists arrived in the area that developed as Albuquerque. By the 1500s, there were around 20 Tiwa pueblos along a 60-mile (97 km) stretch of river from present-day Algodones to
7134-447: The winter. Cooper's hawks are common in city parks. Iconic vegetation includes the Rio Grande cottonwood in the bosque, and tree cholla , prickly pear , yucca , chamisa , and oneseed juniper in upland areas. The foothill open space at the eastern border also features Sonoran scrub oak and piñon pine . Desert willows are commonly planted throughout the city. Tumbleweeds are a common weed in disturbed areas, and are used by
7221-524: Was also the city's first mayor, is the oldest continuing Jewish organization in the city. By 1900, Albuquerque boasted a population of 8,000 and all the modern amenities, including an electric street railway connecting Old Town, New Town, and the recently established University of New Mexico campus on the East Mesa. In 1902, the Alvarado Hotel was built adjacent to the new passenger depot, and it remained
7308-455: Was appointed the town's first marshal that year. New Albuquerque was incorporated as a town in 1885, with Henry N. Jaffa its first mayor. It was incorporated as a city in 1891. Old Town remained a separate community until the 1920s, when it was absorbed by Albuquerque. Old Albuquerque High School , the city's first public high school, was established in 1879. Congregation Albert , a Reform synagogue established in 1897, by Henry N. Jaffa, who
7395-400: Was correct. Instead, it placed the Chindesaurus + Tawa clade within basal Saurischia, prior to the split between sauropodomorphs and theropods. A Chindesaurus + Tawa clade was also found in a revision to Baron et al . (2017)'s controversial Ornithoscelida hypothesis. The hypothesis of close relations to Tawa was elaborated upon in 2019, when the holotype specimen of Chindesaurus
7482-479: Was probably in error, and that the two forms represent the same species. Nesbitt et al. (2007) corroborated this, stating that the differences between Caseosaurus and Chindesaurus cited by Hunt et al. (1998) were probably a result of size-related variation. However, Nesbitt et al. refrained from formally synonymizing the two taxa due to the fragmentary nature of Chindesaurus's ilium. Baron & Williams redescribed Caseosaurus in 2018, and considered it to be
7569-404: Was redescribed by Adam D. Marsh, William G. Parker, Max C. Langer, and Sterling J. Nesbitt. They included a phylogenetic analysis which placed the Chindesaurus + Tawa clade in the base of Theropoda, a similar position to that first described for Tawa .Their sister-taxon relationship was supported by one apomorphy , or unique derived trait: a posterior margin of the proximal end of the tibia which
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