Millersville: Bridgerian, Wyoming

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia
Aves indet. Linnaeus 1758
Shufeldt 1915 1 specimen
YPM 863
Reptilia - Testudines - Emydidae
Chrysemys wyomingensis Leidy 1870
Hay 1904
original and current combination Emys wyomingensis
Mammalia - Apatemyidae
Apatemys bellus Marsh 1872
    = Apatemys sp. Marsh 1872
West 1973
"Blacks Fork Mem."
Mammalia - Esthonychidae
Tillodon fodiens n. sp. (Marsh 1875)
see Gazin 1953
Mammalia
Stylinodon mirus Marsh 1874
Schoch and Lucas 1981
"near Millersville"; Gazin asserts that the type locality is unknown
Mammalia - Condylarthra - Hyopsodontidae
Hyopsodus paulus Leidy 1870
West 1979
"low B"
Hyopsodus minusculus Leidy 1873
(1 measurement)
Mammalia - Creodonta
Thinocyon velox Marsh 1872
Thorpe 1923
"probably" lower Bridger
Mammalia - Creodonta - Hyaenodontidae
Sinopa rapax Leidy 1871
Matthew 1909
Bridger B2; also "S. minor" of Thorpe 1923a from lower Bridger
Mammalia
Oodectes herpestoides Wortman 1901
from Bridger B; see also Thorpe 1923a
Miacis hargeri (Wortman 1901)
original and current combination Vulpavus hargeri
level not stated; see also Thorpe 1923a
Mammalia - Acreodi - Mesonychidae
Harpagolestes macrocephalus Wortman 1901
West 1984
referred specimen "near Millersville" in Bridger B also discussed by Thorpe 1923a
Mammalia - Perissodactyla - Equidae
Orohippus major n. sp. Marsh 1874
from "Horizon B": see Granger 1908, Kitts 1957b
Mammalia - Perissodactyla - Hyrachyidae
Hyrachyus modestus (Leidy 1870)
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)
Wood 1934
synonym of Hyrachyus modestus
Mammalia - Perissodactyla - Brontotheriidae
Palaeosyops paludosus Leidy 1870
Osborn 1929
from Bridger B; said in figure caption to be from B1 at "Little Dry Creek"
Palaeosyops laevidens (Cope 1873)
Gunnell and Yarborough 2000
synonym of Palaeosyops paludosus
lower Bridger B
Mammalia - Homacodontidae
Homacodon vagans Marsh 1872
West 1984
Bridger B
Microsus cuspidatus Leidy 1870
West 1984
"opposite Millersville" in Bridger B; also includes his "Antiacodon venustus" according to Walsh 2000
Antiacodon pygmaeus (Cope 1872)
West 1984
Bridger B; additional specimen from "Lower Bridge" near Millersville is assigned to Microsus by Walsh 2000
Mammalia - Rodentia - Ischyromyidae
Paramys delicatus Leidy 1871
Wood 1962
"Millersville (hence B3)"
Mammalia - Rodentia - Sciuravidae
Sciuravus bridgeri n. sp. Wilson 1938
from "Miller's Ranch? (or Millersville)": see Wilson 1938a
Sciuravus nitidus Marsh 1871
Dawson 1961
lower Bridger
Mammalia - Primates - Omomyidae
Washakius insignis Leidy 1873
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
Notharctus tenebrosus Leidy 1870
Robinson 1957
Bridger B; smaller group of specimens in chart, see also Gingerich 1979a
Notharctus pugnax n. sp. Granger and Gregory 1917
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.
synonym of Smilodectes
from Bridger B at Millersville
Mammalia
Peratherium innominatum n. sp. Simpson 1928
recombined as Herpetotherium innominatum
see Troxell 1923e, Simpson 1928b, Krishtalka and Stucky 1983a
unclassified
Baptemys wyomingensis (Leidy 1870)
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
Formation:Bridger Member:lower
Local section:Bridg Local bed:4
Local order:bottom to top
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]
14442ETE 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]