Tremain ( of the United States)
Where: Laramie County, Wyoming (41.3° N, 105.1° W: paleocoordinates 42.2° N, 99.4° W)
• coordinate based on political unit
When: Arikareean (29.5 - 18.5 Ma)
Environment/lithology: terrestrial
Primary reference: J. H. Wahlert. 1983. Relationships of the Florentiamyidae (Rodentia, Geomyoidea) based on cranial and dental morphology. American Museum Novitates 2769:1-23 [J. Alroy/J. Alroy/J. Marcot]more details
PaleoDB collection 17703: authorized by John Alroy, entered by John Alroy on 05.08.1996, edited by Jonathan Marcot
Creative Commons license: CC BY (attribution)
Taxonomic list
• appears to go across the Goshen/Laramie county line
Show authors, comments, and common names
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Diceratherium annectens1 Marsh 1873 rhinoceros "Early Arikareean, Gering Formation, 3.5 miles east of Tremain, Goshen County, Wyoming"
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"Megasespia middleswarti" = Sespia ultima3, Sespia nitida3, "Hadroleptauchenia densa" = Leptauchenia major3, "Pseudocyclopidius lullianus" = Leptauchenia lullianus3, "Leptauchenia parasimus" = Leptauchenia decora3, "Pithecistes altageringensis" = Leptauchenia decora3, Desmatochoerus hatcheri2, Oreodontoides oregonensis4, "Desmatochoerus (Paradesmatochoerus) anthonyi n. sp." = Merycoidodon major3
"Hadroleptauchenia densa" = Leptauchenia major3 Leidy 1856 oreodont "Tremain area" in "upper Gering"
"Pseudocyclopidius lullianus" = Leptauchenia lullianus3 Thorpe 1921 oreodont "Tremain" in "upper Gering"
"Leptauchenia parasimus" = Leptauchenia decora3 Leidy 1856 oreodont "upper Gering" of "Tremain Area"
"Pithecistes altageringensis" = Leptauchenia decora3 Leidy 1856 oreodont "E. of Tremain" in "upper Gering"
Desmatochoerus hatcheri2 Douglass 1907 oreodont "2-3 mi. E. of Tremain" in the Horse Creek Basin, Goshen Co.
"Desmatochoerus (Paradesmatochoerus) anthonyi n. sp." = Merycoidodon major3 Leidy 1853 oreodont upper "Gering Formation, 3 1/2 mi. E. of Tremain"
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Paraenhydrocyon josephi5 Cope 1881 canid 4 mi E of Tremain and 1/2 mi E of Tremain railroad station, Lower Arikaree Group
"Mesocyon" temnodon5 Wortman and Matthew 1899 canid 1 mi E of Tremain and 3.5 mi E of Tremain, Lower Arikaree Group
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"Florentiamys kennethi" = Florentiamys tiptoni, Florentiamys kinseyi n. sp.
"Florentiamys kennethi" = Florentiamys tiptoni Macdonald 1970 rodent "Three miles ENE of Tremain Station, Goshen Co... Gering Formation"
Florentiamys kinseyi n. sp. Wahlert 1983 rodent "Three miles ENE of Tremain Station, Goshen Co., Wyo.; Gering Formation"
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