Where: Uinta County, Wyoming (41.2° N, 110.5° W: paleocoordinates 45.2° N, 96.8° W)
• coordinate based on political unit
When: lower Member (Bridger Formation), Bridgerian (50.3 - 46.2 Ma)
Environment/lithology: terrestrial; lithology not reported
Size classes: macrofossils, mesofossils
Collected by Marsh, Smith
Primary reference: C. L. Gazin. 1976. Mammalian Faunal Zones of the Bridger Middle Eocene. Smithsonian Contributions to Paleobiology 26:1-25 [J. Alroy/J. Alroy/J. Marcot]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 16201: authorized by John Alroy, entered by John Alroy on 26.03.1995, edited by Roger Benson, Terri Cleary, Matthew Carrano and Evangelos Vlachos
Creative Commons license: CC BY (attribution)
Taxonomic list
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Hyopsodus paulus n. sp.10 Leidy 1870 condylarth of Leidy from "Lower Bridger," said by Redline 1997 to be from "Smith's Fork," and Gazin 1976 to be from general "Fort Bridger" area; also specimen of West 1979 from "low B"
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"Miacis hargeri" = Vulpavus hargeri
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Sinopa sp.10 Leidy 1871 creodont Bridger B2; compared to S. pungens and S. rapax and definitely not the same as the type of S. major, which was said to be from Church Buttes by Thorpe 1923a, although this was questioned by Gazin 1976 on biochronological grounds
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"Palaeosyops paludosus n. sp." = Palaeosyops paludosus, "Palaeosyops laevidens" = Palaeosyops paludosus6
"Palaeosyops paludosus n. sp." = Palaeosyops paludosus Leidy 1870 brontothere from Bridger B1; see Osborn 1929; said by Osborn 1908 to be from Cottonwood Creek
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"Notharctus pugnax" = Notharctus tenebrosus5 Leidy 1870 primate "low down in Horizon B"; matches second, much larger group of "N. tenebrosus" specimens in chart of Robinson 1957; see also Gingerich 1979a
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| Reptilia | |
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| Aves | |
"Aquila antiqua n. sp." = Minerva antiqua16
"Aquila antiqua n. sp." = Minerva antiqua16 Shufeldt 1913 bird 1905 Sinclair specimen from "Church Buttes"
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| Reptilia | |
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Baena arenosa9 Leidy 1870 turtle A second nearly complete specimen of a shell of Baena was discovered by Dr. J. Van A. Carter at Church Buttes, on Black's Fork of Green River, three miles north of Fort Bridger, and was obligingly sent to the writer as a gift.
Baena affinis n. sp.1 Leidy 1871 turtle ANSP 10055 (type specimen of Baena affinis Leidy, 1871a, p. 367; Leidy, 1873, p. 163, pl. 13 fig. 3), a shell, collected by J. Van A. Carter
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Trionyx heteroglyptus n. sp.7 Cope 1873 turtle AMNH 1039, holotype hinder half of a carapace and the complete nuchal bone collected in 1872, by Professor Cope, on the summit of Church Butte
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Anosteira ornata7 Leidy 1871 turtle some of the four, now lost, types (possibly including USNM 4062), others were from Grizzly Buttes [PaleoDB collection 16228]
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"Echmatemys ocyrrhoe n. sp." = Echmatemys stevensoniana7
"Echmatemys ocyrrhoe n. sp." = Echmatemys stevensoniana7 Leidy 1870 turtle AMNH 5933 (holotype), an almost complete shell (Hay 1908, figs. 432, 433)
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| Baptemys wyomingensis | |
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