The Chappel Limestone is a geologic formation in Texas . It preserves fossils dating back to the Carboniferous period .
8-503: In 1959 Wilbert H. Hass described the conodont genus Dollymae from that formation. This article about a specific stratigraphic formation in Texas is a stub . You can help Misplaced Pages by expanding it . This article related to the Carboniferous period is a stub . You can help Misplaced Pages by expanding it . 1959 in paleontology Paleontology or palaeontology
16-1429: A science . This article records significant discoveries and events related to paleontology that occurred or were published in the year 1959. Penthetria? fryi Sp nov valid Rice Ypresian Driftwood Shales [REDACTED] Canada [REDACTED] British Columbia A bibionid fly Penthetria whipsawensis Sp nov valid Rice Ypresian Allenby Formation [REDACTED] Canada [REDACTED] British Columbia A bibionid fly Plecia angustipennis Comb nov valid ( Handlirsch ) Ypresian " Horsefly Shales " [REDACTED] Canada [REDACTED] British Columbia A bibionid fly Moved from Penthetria angustipennis ( 1910 ) Plecia avus Comb nov valid ( Handlirsch ) Ypresian Allenby Formation [REDACTED] Canada [REDACTED] British Columbia A bibionid fly Moved from Penthetria avus ( 1910 ) Plecia cairnesi Sp nov valid Rice Ypresian Driftwood Shales [REDACTED] Canada [REDACTED] British Columbia A bibionid fly Plecia canadensis Comb nov valid ( Handlirsch ) Ypresian Allenby Formation [REDACTED] Canada [REDACTED] British Columbia A bibionid fly Moved from Penthetria canadensis ( 1910 ) Ypresian In
24-542: Is characterized by low oxygen-18 isotopes, high levels of atmospheric p CO 2 , and low meridional thermal gradients. Biodiversity has been reported to have been significantly impacted by the conditions prevalent during the EECO. For instance, there were biotic turnovers among marine producers such as calcareous nannofossils among others etc. The Ypresian Stage was introduced in scientific literature by Belgian geologist André Hubert Dumont in 1850. The Ypresian
32-742: Is named after the Flemish city of Ypres in Belgium (spelled Ieper in Dutch). The definitions of the original stage were totally different from the modern ones. The Ypresian shares its name with the Belgian Ieper Group (French: Groupe d'Ypres ), which has an Ypresian age. The base of the Ypresian Stage is defined at a strong negative anomaly in δ C values at the PETM . The official reference profile ( GSSP ) for
40-407: Is the study of prehistoric life forms on Earth through the examination of plant and animal fossils . This includes the study of body fossils, tracks ( ichnites ), burrows , cast-off parts, fossilised feces ( coprolites ), palynomorphs and chemical residues . Because humans have encountered fossils for millennia, paleontology has a long history both before and after becoming formalized as
48-784: The Messel shales in Germany , the Oise amber of France and Cambay amber of India are of this age. The Eocene Okanagan Highlands are an uplands subtropical to temperate series of lakes from the Ypresian. The Ypresian is additionally marked by another warming event called the Early Eocene Climatic Optimum (EECO). The EECO is the longest sustained warming event in the Cenozoic record, lasting about 2–3 million years between 53 and 50 Ma. The interval
56-902: The geologic timescale the Ypresian is the oldest age or lowest stratigraphic stage of the Eocene . It spans the time between 56 and 47.8 Ma , is preceded by the Thanetian Age (part of the Paleocene ) and is followed by the Eocene Lutetian Age. The Ypresian is consistent with the Lower Eocene (Early Eocene). The Ypresian Age begins during the throes of the Paleocene–Eocene Thermal Maximum (PETM). The Fur Formation in Denmark ,
64-664: The base of the Ypresian is the Dababiya profile near the Egyptian city of Luxor . Its original type section was located in the vicinity of Ieper. The top of the Ypresian (the base of the Lutetian) is identified by the first appearance of the foraminifera genus Hantkenina in the fossil record. The Ypresian Stage overlaps the upper Neustrian and most of the Grauvian European Land Mammal Mega Zones (it spans
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