The Sharamurunian age is a period of geologic time (48.6–37.2 Ma ) within the Middle Eocene epoch of the Paleogene used more specifically with Asian Land Mammal Ages . It follows the Irdinmanhan age and precedes the Ulangochuian age.
3-698: The upper boundary layer of the Sharamurunian can be the approximate lower base of the Lutetian age. The Sharamurunian age is named after the Sharamurun River in China . This geochronology article is a stub . You can help Misplaced Pages by expanding it . Lutetian The Lutetian is, in the geologic timescale , a stage or age in the Eocene . It spans the time between 47.8 and 41.2 Ma . The Lutetian
6-754: Is at the first appearance of the nanofossil Blackites inflatus , according to an official reference profile ( GSSP ) established in 2011. Of two candidates located in Spain , the Gorrondatxe section was chosen. The top of the Lutetian (the base of the Bartonian) is at the first appearance of calcareous nanoplankton species Reticulofenestra reticulata . The Lutetian overlaps with the Geiseltalian and lower Robiacian European Land Mammal Mega Zones (The Lutetian Stage spans
9-739: Is preceded by the Ypresian and is followed by the Bartonian. Together with the Bartonian it is sometimes referred to as the Middle Eocene Subepoch. The Lutetian was named after Lutetia , the Latin name for the city of Paris . The Lutetian Stage was introduced in scientific literature by French geologist Albert de Lapparent in 1883 and revised by A. Blondeau in 1981. The base of the Lutetian Stage
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