Discovery Site (Fort Polk) (Miocene of the United States)

Where: Vernon County, Louisiana (31.1° N, 93.1° W: paleocoordinates 31.6° N, 90.0° W)

• coordinate based on political unit

When: Castor Creek Member (Fleming Formation), Barstovian (16.3 - 12.5 Ma)

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Collection methods: bulk, sieve

Primary reference: J. A. Schiebout. 1997. Paleofaunal survey, collecting, processing, and documentation at two locations on Fort Polk, Louisiana. U.S. Army Corps of Engineers, Fort Worth District; Contract No. DACW63-90-D-0008, Delivery Order 13 [No sponsoring agency report number given] 1-92 [J. Alroy/J. Alroy]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 18621: authorized by John Alroy, entered by John Alroy on 21.09.1998

Creative Commons license: CC BY (attribution)

Taxonomic list

• actually in Vernon "Parish"
apparently does not include new material reported by Schiebout and Ting 1996, Ting and Schiebout 1997, of which Eomyidae indet. of the former cannot be allocated to an exact sites
total generically identifiable NISP 70
Mammalia
 Chiroptera - Vespertilionidae
Antrozous sp. Allen 1862 pallid bat
a bat:
 Proboscidea - Gomphotheriidae
Gomphotherium sp. Burmeister 1837 gomphothere
"Gomphotheriidae indet." of Schiebout 1997a
 Carnivora - Mustelidae
Miomustela sp.3 Hall 1930 mustelid carnivore
 Perissodactyla - Equidae
cf. Merychippus gunteri, "Merychippus cf. goorisi" = Cormohipparion goorisi3
cf. Merychippus gunteri Simpson 1930 horse
"Equidae indet." of Schiebout 1997a; includes one additional specimen of Schiebout and Ting 2000
"Merychippus cf. goorisi" = Cormohipparion goorisi3 MacFadden and Skinner 1981 hipparionine horse
 Perissodactyla - Rhinocerotidae
Aphelops sp.3 Owen 1845 rhinoceros
 Artiodactyla - Merycoidodontidae
cf. Merychyus sp.3 Leidy 1858 oreodont
 Artiodactyla - Tayassuidae
Tayassuidae indet.3 Palmer 1897 peccary
"Cynorca or Dyseohyus"
 Artiodactyla - Camelidae
? Aepycamelus sp.3 Macdonald 1956 camel
 Artiodactyla - Protoceratidae
Prosynthetoceras francisi Frick 1937 protoceratid
includes additional three specimens reported by Schiebout and Ting 2000
 Lagomorpha - Leporidae
cf. Hypolagus sp.2 Dice 1917 rabbit
slight chance this is the lagomorph specimen from TVOR
 Rodentia - Cricetidae
Copemys sp. Wood 1936 mouse
see also Schiebout and Ting 1996; Schiebout and Ting 2000 indicate that there are only 8 specimens, reason for discrepancy is unclear
 Rodentia -
Texomys ritchiei Slaughter 1981 rodent
"T. sp." of Schiebout 1997a; NISP based on Schiebout and Ting 2000
 Rodentia - Sciuridae
Nototamias sp.3 Pratt and Morgan 1989 squirrel
 Rodentia - Castoridae
Castoridae indet. Gray 1821 beaver
including one "Monosaulax sp." specimen, earlier referred to "Castoridae indet." by Schiebout 1997a and later to "Eucastor sp." said to be new by Schiebout and Ting 2000, who also report one new specimen of this form and another of "Eucastor cf. pansus"
 Rodentia -
Geomyoidea indet.1 Bonaparte 1845 rodent