Trail Creek Quarry (Miocene to of the United States)

Also known as DUPLICATE REF 1498 or 1499 or 1500

Where: Laramie County, Wyoming (41.3° N, 105.1° W: paleocoordinates 41.7° N, 103.2° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Ash Hollow Formation, Clarendonian to Clarendonian (12.5 - 9.4 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Primary reference: A. -M. Forsten. 1970. Variation in and between three populations of Mesohippus bairdii Leidy from the Big Badlands, South Dakota. Acta Zoologica Fennica 126:1-16 [J. Alroy/J. Alroy/M. Uhen]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 18424: authorized by John Alroy, entered by John Alroy on 05.08.1992

Creative Commons license: CC BY (attribution)

Taxonomic list

• NISP 65 - numbers in table count each tooth in a tooth row separately, so NISP was recomputed by hand
Show authors, comments, and common names
Mammalia
 Perissodactyla - Rhinocerotidae
Teleoceras sp.
Teleoceras sp. Hatcher 1894 rhinoceros
DUPLICATE REF 1498 or 1499 or 1500
 Perissodactyla - Equidae
"Merychippus" coloradense3, Pseudhipparion retrusum1, Hypohippus affinis1
"Merychippus" coloradense3 Osborn 1918 horse
pers. commun.
Pseudhipparion retrusum1 Cope 1889 hipparionine horse
Hypohippus affinis1 Leidy 1858 anchitheriine horse
 Artiodactyla - Antilocapridae
Merycodus cf. warreni1
Merycodus cf. warreni1 Leidy 1858 pronghorn
 Artiodactyla - Merycoidodontidae
Ustatochoerus medius2
Ustatochoerus medius2 Leidy 1858 oreodont
 Artiodactyla - Camelidae
Aepycamelus sp.
Aepycamelus sp. Macdonald 1956 camel
DUPLICATE REF 1498 or 1499 or 1500
 Carnivora - Felidae
Pseudaelurus intrepidus
Pseudaelurus intrepidus Leidy 1858 cat
DUPLICATE REF 1498 or 1499 or 1500
 Carnivora - Canidae
Paratomarctus temerarius1
Paratomarctus temerarius1 Leidy 1858 bone-crushing dog
 Theriamorpha - Talpidae
Talpidae indet.
Talpidae indet. Fischer de Waldheim 1817 mole
DUPLICATE REF 1498 or 1499 or 1500
 Rodentia - Heteromyidae
Heteromyinae indet.1
Heteromyinae indet.1 Gray 1868 rodent
 Rodentia - Mylagaulidae
Mylagaulidae indet.1
Mylagaulidae indet.1 Cope 1881 rodent
 Rodentia - Sciuridae
"Tamiini indet." = Marmotini
"Tamiini indet." = Marmotini squirrel
"Tamias or Eutamias" DUPLICATE REF 1498 or 1499 or 1500
 Lagomorpha - Leporidae
Hypolagus cf. parviplicatus1
Hypolagus cf. parviplicatus1 Dawson 1958 rabbit
1Alroy 2002; 2Cassiliano 1980; 3Hulbert 1989