Cathedral Bluffs (UNSM) (Eocene of the United States)

Where: Sweetwater and Carbon County, Wyoming (41.8° N, 108.0° W: paleocoordinates 45.5° N, 94.1° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Cathedral Bluffs Member (Wasatch Formation), Bridgerian (50.3 - 46.2 Ma)

Environment/lithology: terrestrial

Reposited in the UNSM

Primary reference: C. L. Gazin. 1965. Wyoming Geological Association Guidebook 19 [J. Alroy/J. Alroy]more details

PaleoDB collection 16198: authorized by John Alroy, entered by John Alroy on 21.09.1998, edited by Jonathan Marcot

Creative Commons license: CC BY (attribution)

Taxonomic list

• includes the collection described by Morris 1954; unrelated to the collections made by West in the Green River Basin Lostcabinian according to Gazin, but Bridgerian based on occurrence of Palaeosyops
Mammalia
 Cimolesta - Esthonychidae
? Trogosus cf. latidens Marsh 1874 tillodont
described by Gazin 1953
 Cimolesta - Pantolestidae
Palaeosinopa cf. didelphoides Cope 1881 eutherian
 Primates - Notharctidae
Notharctus cf. venticolus Osborn 1902 primate
 Primates - Omomyidae
Artimonius witteri5 Morris 1954 primate
 Rodentia - Sciuravidae
Sciuravus wilsoni Gazin 1961 rodent
note that S. nitidus is reported by Roehler 1991b from the CB Mbr on the east edge of the basin, near to but several miles west of a CB locality indicated by Gazin
Knightomys depressus3 Loomis 1907 rodent
some specimens of Sciuravus wilsoni; K. senior is listed by Black and Sutton 1984; includes type of "Microparamys cathedralis"
Knightomys huerfanensis2 Wood 1962 rodent
 Rodentia - Reithroparamyidae
Reithroparamys huerfanensis2 Wood 1962 rodent
 Rodentia - Ischyromyidae
Paramys excavatus2 Loomis 1907 rodent
Paramys copei Loomis 1907 rodent
includes "P. major"
 Condylarthra - Hyopsodontidae
Hyopsodus powellianus1 Cope 1884 condylarth
 Placentalia -
Perissodactyla indet.1 Owen 1848 odd-toed ungulate
 Perissodactyla - Brontotheriidae
cf. Palaeosyops fontinalis Cope 1873 brontothere
confirmed by Gunnell and Yarborough 2000; said to be "P. huerfanensis" by Stucky 1984c; I assume he refers to Gazin's Cathedral Bluffs locality because there are no brontotheres at the Green locality
 Perissodactyla - Hyrachyidae
Hyrachyus cf. modestus Leidy 1870 odd-toed ungulate
 Perissodactyla - Palaeotheriidae
Hyracotherium vasacciense Cope 1872 odd-toed ungulate
 Ferae - Viverravidae
Didymictis altidens Cope 1880 placental
Viverravus lutosus Gazin 1952 placental
 Hyaenodonta - Hyaenodontidae
Prolimnocyon antiquus4 Matthew and Granger 1915 eutherian
"Its occurrence in the same locality as I. datzae..."
Iridodon datzae n. gen. n. sp.4 Morlo and Gunnell 2003 eutherian
"UM locality SP-5, Sweetwater County, South Pass, Green River Basin, Wyoming; Wasatch Formation, Cathedral Bluffs Tongue, Gardnerbuttean, Bridgerian biochron Br-1a."
 Theriiformes - Peradectidae
cf. Peradectes chesteri1 Gazin 1952 metatherian
 Theriiformes - Herpetotheriidae
Herpetotherium knighti1 McGrew et al. 1959 marsupial
 Artiodactyla - Homacodontidae
Hexacodus pelodes Gazin 1952 even-toed ungulate