Buckman Hollow (Paleocene of the United States)

Also known as Almy; La Barge Creek

Where: Lincoln County, Wyoming (41.3° N, 110.3° W: paleocoordinates 46.9° N, 92.7° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Chappo Member (Wasatch Formation), Clarkforkian (56.8 - 55.8 Ma)

Environment/lithology: terrestrial; pebbly, red, conglomeratic claystone

• "reddish, pebbly clay, partly conglomeratic"

Size class: macrofossils

Primary reference: C. L. Gazin. 1942. Fossil Mammalia from the Almy Formation in western Wyoming. Journal of the Washington Academy of Sciences 32(7):217-220 [J. Alroy/J. Alroy/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 15075: authorized by John Alroy, entered by John Alroy on 18.02.1993, edited by Matthew Carrano and Patricia Holroyd

Creative Commons license: CC BY (attribution)

Taxonomic list

• see also Gazin 1956d, Rose 1981a

•NISP 73

•specimen counts based on Gazin 1956 and exclude new UM collections of Rose

•appears to include "Chappo-12" and "Chappo-18" of Gingerich 1976

•stratigraphic position relative to Chappo Type Locality and Chappo Oil Well indeterminate: see Dorr and Gingerich 1980; contra Gingerich 1976

Mammalia
 Cimolesta - Barylambdidae
Barylambda faberi1 Patterson 1933 pantodont
 Primates - Plesiadapidae
Plesiadapis dubius1 Matthew 1915 primate
Plesiadapis dubius3 Matthew 1915 primate
Plesiadapis cf. cookei Jepsen 1930 primate
 Primates - Carpolestidae
Carpolestes sp.1 Simpson 1928 primate
 Rodentia - Ischyromyidae
Paramys sp.4 Leidy 1871 rodent
 Amblypoda - Prodinoceratidae
Probathyopsis cf. harrisorum3 Patterson 1939 uintathere
confirmed by Wheeler 1961, Rose 1981a, Thewissen and Gingerich 1987; DUPLICATE REF 1609 or 1610 or 1611 or 4269
 Tribosphenida - Phenacodontidae
Ectocion osbornianus3 Cope 1882 condylarth
Phenacodus intermedius1 Granger 1915 condylarth
Phenacodus vortmani1 Cope 1880 condylarth
 Ferae - Viverravidae
? Viverravus sp.1 Marsh 1872 placental
 Macroscelidea - Apheliscidae
Apheliscus nitidus4 Simpson 1937 elephant shrew
 Taeniodonta - Stylinodontidae
Ectoganus sp.1 Cope 1874 taeniodont
 Tribosphenida - Arctocyonidae
"? Anacodon nexus n. sp." = Arctocyon nexus2, Thryptacodon pseudarctos5
"? Anacodon nexus n. sp." = Arctocyon nexus2 Gazin 1956 condylarth
Thryptacodon pseudarctos5 Simpson 1928 condylarth
 Acreodi - Mesonychidae
Dissacus cf. praenuntius3 Matthew and Granger 1915 condylarth
 Multituberculata - Ptilodontidae
? Prochetodon sp.4 Jepsen 1940 multituberculate
new UM specimen; described by Krause 1980, 1987b