White Cone (Neogene of the United States)

Also known as UALP 6

Where: Navajo County, Arizona (35.8° N, 110.1° W: paleocoordinates 36.2° N, 108.5° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Bidahochi Formation, Late/Upper Hemphillian (10.3 - 4.9 Ma)

• "middle Hemphillian"

•Baskin 1978: from the "upper member of the Bidahochi Formation, approximately 20 m above the volcanic (limburgite) tuff middle member"; a different basalt in the middle member is dated at 6.69 +/- 0.16 Ma (K-Ar)

Environment/lithology: terrestrial; lithology not reported

Size class: mesofossils

Collected by Baskin in 1974

Collection methods: bulk, sieve,

• material reposited in the UALP but owned by "the Navajo and Hope tribes" (Baskin 1978)

Primary reference: J. A. Baskin. 1979. Small Mammals of the Hemphillian Age White Cone Local Fauna, Northeastern Arizona. Journal of Paleontology 53(3):695-708 [J. Alroy/J. Alroy/J. Ju]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 19610: authorized by John Alroy, entered by John Alroy on 18.02.1993, edited by Jonathan Marcot

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Soricomorpha - Talpidae
? Domninoides sp. Green 1956 mole
 Soricomorpha - Soricidae
Notiosorex sp. Baird 1877 gray shrew
 Carnivora - Mustelidae
Plesiogulo marshalli3 Martin 1928 mustelid carnivore
Cernictis repenningi n. sp.2 Baskin 2011 mustelid carnivore
 Carnivora - Procyonidae
Procyonidae indet.6 Gray 1825 procyonid carnivore
 Carnivora - Felidae
"Paramachairodus sp." = Paramachaerodus4
"Paramachairodus sp." = Paramachaerodus4 Pilgrim 1913 cat
USNM 2444453
 Carnivora - Canidae
Eucyon davisi8 Merriam 1911 canine
 Artiodactyla - Camelidae
Camelidae indet.6 Gray 1821 camel
 Rodentia - Mylagaulidae
Mylagaulidae indet.5 Cope 1881 rodent
 Rodentia - Cricetidae
Paronychomys alticuspis n. sp. Baskin 1979 rodent
Copemys sp. Wood 1936 rodent
Cricetinae indet. Fischer von Waldheim 1817 rodent
"Bensonomys gidleyi" = Calomys (Bensonomys) gidleyi1 Baskin 1978 rodent
"Bensonomys yazhi" = Calomys (Bensonomys) yazhi1 Baskin 1978 rodent
 Rodentia - Sciuridae
Sciurinae indet. Gray 1821 squirrel
Spermophilus sp. Cuvier 1825 ground squirrel
compared to S. gidleyi
 Rodentia - Castoridae
Dipoides williamsi n. sp. Stirton 1936 beaver
see Stirton 1936
 Rodentia - Heteromyidae
Cupidinimus bidahochiensis1 Baskin 1979 rodent
Perognathinae indet.1 Coues 1875 rodent
 Lagomorpha - Leporidae
Hypolagus ringoldensis9 Gustafson 1978 rabbit
Reptilia
 Squamata - Teiidae
Cnemidophorus sp.7 Wagler 1830 whiptail lizard
 Squamata - Scincidae
Eumeces sp.7 Wiegmann 1834 skink
 Squamata - Colubridae
Heterodon cf. nasicus7 Baird and Girard 1852 western hognose snake
Thamnophis sp.7 Fitzinger 1843 garter snake
"Lampropeltis getula" = Lampropeltis getulus7 Linnaeus 1766 kingsnake
gender is correct!
Pituophis melanoleucus7 Daudin 1803 pine snake
Amphibia
 Salientia - Bufonidae
Bufo sp.7 Laurenti 1768 toad
large
"Bufo woodhousii" = Bufo woodhousei7 Girard 1854 Woodhouse's toad
Bufo pliocompactilis7 Wilson 1968 toad
 Salientia - Hylidae
Hyla sp.7 Laurenti 1768 tree frog
 Salientia - Ranidae
Rana sp.7 Linnaeus 1758 frog
 Salientia - Pelobatidae
Scaphiopus sp.7 Holbrook 1836 spadefoot toad