Millersville: Bridgerian, Wyoming
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia
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Aves indet.
Linnaeus 1758
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Shufeldt 1915 | 1 specimen | ||||||||
YPM 863 | ||||||||||
Reptilia
- Testudines
- Emydidae
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Chrysemys wyomingensis
Leidy 1870
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Hay 1904 | |||||||||
original and current combination Emys wyomingensis | ||||||||||
Mammalia
- Apatemyidae
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Apatemys bellus
Marsh 1872
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= Apatemys sp.
Marsh 1872
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West 1973 | |||||||||
"Blacks Fork Mem." | ||||||||||
Mammalia
- Esthonychidae
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Tillodon fodiens n. sp.
(Marsh 1875)
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see Gazin 1953 | ||||||||||
Mammalia
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Stylinodon mirus
Marsh 1874
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Schoch and Lucas 1981 | |||||||||
"near Millersville"; Gazin asserts that the type locality is unknown | ||||||||||
Mammalia
- Condylarthra
- Hyopsodontidae
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Hyopsodus paulus
Leidy 1870
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West 1979 | |||||||||
"low B" | ||||||||||
Hyopsodus minusculus
Leidy 1873
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(1 measurement) | ||||||||||
Mammalia
- Creodonta
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Thinocyon velox
Marsh 1872
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Thorpe 1923 | |||||||||
"probably" lower Bridger | ||||||||||
Mammalia
- Creodonta
- Hyaenodontidae
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Sinopa rapax
Leidy 1871
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Matthew 1909 | |||||||||
Bridger B2; also "S. minor" of Thorpe 1923a from lower Bridger | ||||||||||
Mammalia
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Oodectes herpestoides
Wortman 1901
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from Bridger B; see also Thorpe 1923a | ||||||||||
Miacis hargeri
(Wortman 1901)
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original and current combination Vulpavus hargeri | ||||||||||
level not stated; see also Thorpe 1923a | ||||||||||
Mammalia
- Acreodi
- Mesonychidae
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Harpagolestes macrocephalus
Wortman 1901
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West 1984 | |||||||||
referred specimen "near Millersville" in Bridger B also discussed by Thorpe 1923a | ||||||||||
Mammalia
- Perissodactyla
- Equidae
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Orohippus major n. sp.
Marsh 1874
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from "Horizon B": see Granger 1908, Kitts 1957b | ||||||||||
Mammalia
- Perissodactyla
- Hyrachyidae
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Hyrachyus modestus
(Leidy 1870)
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Wood 1934 | |||||||||
Bridger B; includes "Metahyrachyus bicornutus" type of Troxell 1922d from "Millersville, near Fort Bridger"; B1 and B2 specimens are described by Wood 1934 | ||||||||||
Hyrachyus affinis
(Marsh 1871)
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Wood 1934 | |||||||||
synonym of Hyrachyus modestus | ||||||||||
Mammalia
- Perissodactyla
- Brontotheriidae
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Palaeosyops paludosus
Leidy 1870
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Osborn 1929 | |||||||||
from Bridger B; said in figure caption to be from B1 at "Little Dry Creek" | ||||||||||
Palaeosyops laevidens
(Cope 1873)
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Gunnell and Yarborough 2000 | |||||||||
synonym of Palaeosyops paludosus | ||||||||||
lower Bridger B | ||||||||||
Mammalia
- Homacodontidae
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Homacodon vagans
Marsh 1872
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West 1984 | |||||||||
Bridger B | ||||||||||
Microsus cuspidatus
Leidy 1870
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West 1984 | |||||||||
"opposite Millersville" in Bridger B; also includes his "Antiacodon venustus" according to Walsh 2000 | ||||||||||
Antiacodon pygmaeus
(Cope 1872)
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West 1984 | |||||||||
Bridger B; additional specimen from "Lower Bridge" near Millersville is assigned to Microsus by Walsh 2000 | ||||||||||
Mammalia
- Rodentia
- Ischyromyidae
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Paramys delicatus
Leidy 1871
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Wood 1962 | |||||||||
"Millersville (hence B3)" | ||||||||||
Mammalia
- Rodentia
- Sciuravidae
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Sciuravus bridgeri n. sp.
Wilson 1938
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from "Miller's Ranch? (or Millersville)": see Wilson 1938a | ||||||||||
Sciuravus nitidus
Marsh 1871
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Dawson 1961 | |||||||||
lower Bridger | ||||||||||
Mammalia
- Primates
- Omomyidae
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Washakius insignis
Leidy 1873
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Gazin 1958 | |||||||||
"low in B, not far from the confluence of Black's Fork and Smith's Fork" (i.e., at Millersville) | ||||||||||
Mammalia
- Primates
- Notharctidae
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Notharctus tenebrosus
Leidy 1870
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Robinson 1957 | |||||||||
Bridger B; smaller group of specimens in chart, see also Gingerich 1979a | ||||||||||
Notharctus pugnax n. sp.
Granger and Gregory 1917
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Granger and Gregory 1917 | |||||||||
synonym of Notharctus tenebrosus | ||||||||||
from lower Bridger at Millersville, referred specimen from B2; see also Gingerich 1979a | ||||||||||
Aphanolemur gibossus n. sp.
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synonym of Smilodectes | ||||||||||
from Bridger B at Millersville | ||||||||||
Mammalia
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Peratherium innominatum n. sp.
Simpson 1928
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recombined as Herpetotherium innominatum | ||||||||||
see Troxell 1923e, Simpson 1928b, Krishtalka and Stucky 1983a | ||||||||||
unclassified
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Baptemys wyomingensis
(Leidy 1870)
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Hay 1908 | 1 specimen | ||||||||
original and current combination Emys wyomingensis | ||||||||||
YPM 484: crusht carapace and a complete plastron ftext-fig. 338), the nearly complete skull (plate 37, figs. 11, 12, 13), and portions of limb bones (collected 1870) | ||||||||||
see common names |
Geography
Country: | United States | State/province: | Wyoming | County: | Uinta |
Coordinates: | 41.2° North, 110.5° West (view map) | ||||
Paleocoordinates: | 45.2° North, 96.8° West | ||||
Basis of coordinate: | based on political unit |
Time
Period: | Paleogene | Epoch: | Eocene |
10 m.y. bin: | Cenozoic 2 | ||
*Period: | Tertiary | ||
Key time interval: | Bridgerian | ||
Age range of interval: | 50.30000 - 46.20000 m.y. ago | ||
* legacy (obsolete) database fields |
Stratigraphy
Lithology and environment
Environment: | terrestrial indet. |
Taphonomy
Modes of preservation: | body |
Collection methods and comments
Taxonomic list comments:type of Microparamys minutus may be from Millersville Bridger B: see Wood 1962 |
Metadata
Database number: | 16284 | ||
Authorizer: | J. Alroy, R. Benson, E. Vlachos, M. Carrano | Enterer: | J. Alroy, E. Vlachos, R. Benson, M. Carrano | Research group: | vertebrate |
Created: | 1995-03-26 00:00:00 | Last modified: | 2002-06-03 03:27:41 |
Access level: | the public | Released: | 1995-03-26 00:00:00 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
1623. | 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] |
Secondary references:
6294 | J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari] | |
1336 | M. R. Dawson. 1961. The skull of Sciuravus nitidus, a Middle Eocene rodent. Postilla 53:1-13 [J. Alroy/J. Alroy/J. Ju] | |
1613 | C. L. Gazin. 1958. A review of the middle and upper Eocene primates of North America. Smithsonian Miscellaneous Collections 136(1):1-112 [J. Alroy/J. Alroy/M. Uhen] | |
1638 | P. D. Gingerich. 1979. Phylogeny of middle Eocene Adapidae (Mammalia, Primates) in North America: Smilodectes and Notharctus. Journal of Paleontology 53(1):153-163 [J. Alroy/J. Alroy/J. Alroy] | |
1698 | W. Granger and W. K. Gregory. 1917. A revision of the Eocene primates of the genus Notharctus. Bulletin of the American Museum of Natural History 37(34) [J. Alroy/J. Alroy/J. Ju] | |
1748 | G. F. Gunnell and V. L. Yarborough. 2000. Brontotheriidae (Perissodactyla) from the late early and middle Eocene (Brigerian), Wasatch and Bridger formations, southern Green River Basin, southwestern Wyoming. Journal of Vertebrate Paleontology 20(2):349-368 [J. Alroy/J. Alroy/J. Marcot] | |
64197 | O. P. Hay. 1904. On some fossil turtles belonging to the Marsh Collection in Yale University Museum. American Journal of Science, Fourth Series 18(106):261-276 [P. Holroyd/P. Holroyd] | |
14442 | ETE | O. P. Hay. 1908. The fossil turtles of North America. Carnegie Institution of Washington Publication 75:1-568 [M. Carrano/M. Carrano/M. Carrano] |
7017 | W. D. Matthew. 1909. The Carnivora and Insectivora of the Bridger Basin, middle Eocene. Memoirs of the American Museum of Natural History 9:289-567 [J. Alroy/J. Alroy/J. Alroy] | |
2708 | H. F. Osborn. 1929. New Eurasiatic and American proboscideans. American Museum Novitates 393:1-22 [J. Alroy/J. Alroy/M. Carrano] | |
2917 | P. Robinson. 1957. The species Notharctus from the Middle Eocene. Postilla 28:1-27 [J. Alroy/J. Alroy/J. Ju] | |
3056 | R. M. Schoch and S. G. Lucas. 1981. The Systematics of Stylinodon, an Eocene Taeniodont (Mammalia) from Western North America. Journal of Vertebrate Paleontology 1(2):175-183 [J. Alroy/J. Alroy/J. Ju] | |
57738 | R. W. Shufeldt. 1915. Fossil birds in the Marsh Collection of Yale University. Transactions of the Connecticut Academy of Arts and Sciences 19:1-110 [M. Uhen/M. Uhen/M. Carrano] | |
3419 | M. R. Thorpe. 1923. Notes on the Bridger (Eocene) Carnivora. American Journal of Science 5(25):23-39 [J. Alroy/J. Alroy/J. Marcot] | |
3597 | R. M. West. 1973. Review of the North American Eocene and Oligocene Apatemyidae (Mammalia, Insectivora). Special Publications, Texas Tech University Museum 3 [J. Alroy/J. Alroy] | |
3603 | R. M. West. 1979. Paleontology and geology of the Bridger Formation, southern Green River Basin, southwestern Wyoming. Part 3. Notes on Hyopsodus. Milwaukee Public Museum Contributions in Biology and Geology 25:1-52 [J. Alroy/J. Alroy/M. Uhen] | |
3606 | R. M. West. 1984. Paleontology and Geology of the Bridger Formation, Southern Green River Basin, Southwestern Wyoming. Part 7. Survey of Bridgerian Artiodactyla, including description of a skull and partial skeleton of Antiacodon pygmaeus. Milwaukee Public Museum Contributions in Biology and Geology 56:1-47 [J. Alroy/J. Alroy/J. Marcot] | |
3731 | A. E. Wood. 1962. The Early Tertiary Rodents of the Family Paramyidae. Transactions of the American Philosophical Society 52(1):3-261 [J. Alroy/J. Alroy/J. Marcot] | |
3744 | H. E. Wood. 1934. Revision of the Hyrachyidae. Bulletin of the American Museum of Natural History 67(5):181-295 [J. Alroy/J. Alroy/J. Marcot] |