Arnett (Neogene of the United States)

Also known as Adair Ranch; Port-of-Entry Pit

Where: Ellis County, Oklahoma (36.1° N, 99.8° W: paleocoordinates 36.4° N, 98.1° W)

• coordinate based on political unit

When: Hemphillian (10.3 - 4.9 Ma)

Environment/lithology: terrestrial; lithology not reported

Primary reference: G. E. Schultz. 1990. Stop 15: Early Hemphillian faunas of the Texas and Oklahoma panhandles. In T. C. Gustavson (ed.), Tertiary and Quaternary stratigraphy and vertebrate paleontology of parts of northwestern Texas and eastern New Mexico; Guidebook - Bureau of Economic Geology, University of Texas at Austin 95-103 [J. Alroy/J. Alroy/J. Alroy]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 18034: authorized by John Alroy, entered by John Alroy on 05.08.1992

Creative Commons license: CC BY (attribution)

Taxonomic list

• probably includes Hopewell
about 14 m below prominent mortar bed (see Higgins)
 Perissodactyla - Rhinocerotidae
Teleoceras fossiger4 Cope 1878 rhinoceros
pers. comm.
Aphelops malacorhinus4 Cope 1878 rhinoceros
pers. comm.: "A. sp."
 Perissodactyla - Equidae
Hippotherium sp.1 Kaup 1832 hipparionine horse
Nannippus cf. aztecus3 Mooser 1968 hipparionine horse
pers. commun.
Neohipparion leptode Merriam 1915 hipparionine horse
described by Hulbert 1987
Hipparion tehonense3 Merriam 1916 hipparionine horse
pers. commun.: "H. sp."
Pliohippus nobilis3 Osborn 1918 horse
pers. commun.
 Carnivora - Barbourofelidae
Barbourofelis loveorum Baskin 1981 carnivoran
 Carnivora - Canidae
Epicyon saevus1 Leidy 1858 bone-crushing dog
Epicyon haydeni1 Leidy 1858 bone-crushing dog
Carpocyon limosus5 Webb 1969 bone-crushing dog
 Carnivora - Felidae
Nimravides cf. thinobates Macdonald 1948 cat
 Proboscidea - Gomphotheriidae
Gomphotherium obscurum2 Leidy 1869 gomphothere
 Ungulata - Tayassuidae
Tayassuinae indet.1 Palmer 1897 peccary
 Ungulata - Camelidae
Megatylopus sp. Matthew and Cook 1909 camel
Procamelus sp. Leidy 1858 camel
Aepycamelus sp. Macdonald 1956 camel
Hemiauchenia sp. Gervais and Ameghino 1880 camel
 Ungulata - Palaeomerycidae
"Pediomeryx cf. figginsi" = Yumaceras figginsi
"Pediomeryx cf. figginsi" = Yumaceras figginsi Frick 1937 ruminant
at "P.E. Pit": Webb 1983
 Ungulata - Antilocapridae
Antilocaprinae indet. Gray 1866 pronghorn