Alkali Creek (AMNH) (Eocene of the United States)

Where: Freemont County County, Wyoming (43.1° N, 104.1° W: paleocoordinates 45.4° N, 92.4° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Wind River Formation, Middle Eocene (48.6 - 37.2 Ma)

Environment/lithology: terrestrial; lithology not reported

Size classes: macrofossils, mesofossils

Collected by George Olsen, Walter Granger, William Stein in 1909; reposited in the AMNH

Primary reference: C. W. Gilmore. 1928. Fossil lizards of North America. Memoirs of the National Academy of Sciences 22(3):1-201 [J. Head/J. Head/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 118469: authorized by Roger Benson, entered by Roger Benson on 14.10.2011, edited by Jonathan Marcot and Terri Cleary

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Squamata -
"Saniwa paucidens" = Saniwa ensidens
"Saniwa paucidens" = Saniwa ensidens Leidy 1870 squamates
AMNHN 1646, 8 dorsal vertebrae; AMNH 1647, distal end of left femur
 Squamata - Anguidae
Glyptosaurinae indet.2, "Glyptosaurus princeps" = Paraglyptosaurus princeps, "cf. Paraglyptosaurus princeps" = Paraglyptosaurus princeps2, Glyptosaurus sp.
Glyptosaurinae indet.2 Marsh 1872 squamates
AMNH 1613, body osteoderms, vertebrae fragments, un-ID'd bone fragments
"Glyptosaurus princeps" = Paraglyptosaurus princeps Marsh 1872 squamates
AMNH 1614, partial skull and postcranial elements plus dermal scutes
"cf. Paraglyptosaurus princeps" = Paraglyptosaurus princeps2 Marsh 1872 squamates
AMNH 5196, dentary and maxilla fragment, osteoderms, misc. bone fragments
Glyptosaurus sp. Marsh 1871 squamates
AMNH 5109, skull and jaw fragments, a few vertebrae, partial humerus
 Squamata - Iguanidae
Parasauromalus olseni n. gen. n. sp.
Parasauromalus olseni n. gen. n. sp. Gilmore 1928 squamates
AMNH 1620 (holotype dentary)
Mammalia
 Ungulata - Diacodexeidae
Diacodexis minutus1 Krishtalka and Stucky 1985 even-toed ungulate