Dairy Creek (Paleocene of the United States)

Where: Sanpete County, Utah (39.1° N, 111.8° W: paleocoordinates 46.6° N, 90.4° W)

• coordinate based on political unit

When: North Horn Formation, Puercan (66.0 - 63.3 Ma)

Environment/lithology: terrestrial

Primary reference: S. F. Robison. 1986. Paleocene (Puercan-Torrejonian) mammalian faunas of the North Horn Formation, central Utah. Brigham Young University Geology Studies 33(1):87-133 [J. Alroy/J. Alroy]more details

PaleoDB collection 14692: authorized by John Alroy, entered by John Alroy on 18.02.1993

Creative Commons license: CC BY (attribution)

Taxonomic list

• about 180 m below upper contact of Fm.
unclassified
  -
Actinopteri
 Lepisosteiformes - Lepisosteidae
cf. Lepisosteus sp. Agassiz 1843 gar
Reptilia
 Testudines - Trionychidae
Trionychidae indet.2 Gray 1825 softshell turtle
 Testudines -
Compsemys victa Leidy 1856 turtle
 Testudines - Kinosternoidea
Hoplochelys sp. Hay 1908 mud turtle
 Loricata -
Crocodylia indet.3 crocodilian
 Crocodylia - Alligatoridae
cf. Allognathosuchus sp. Mook 1921 crocodilian
 Choristodera -
Champsosaurus sp. Cope 1876 choristodere
Mammalia
 Tribosphenida - Arctocyonidae
Loxolophus cf. spiekeri Gazin 1938 condylarth
 Ungulata - Hyopsodontidae
Litaletes gazini1 Robison 1986 condylarth
 Ungulata - Periptychidae
Periptychus coarctatus Cope 1883 condylarth
includes "P. hamaxitus"
Ectoconus ditrigonus Cope 1882 condylarth
Ectoconus symbolus Gazin 1939 condylarth
Oxyacodon apiculatus Osborn and Earle 1895 condylarth
Haploconus sp. Cope 1882 condylarth
Haploconus elachistus Gazin 1941 condylarth
Anisonchus onostus Gazin 1939 condylarth
Anisonchus athelas Van Valen 1978 condylarth
 Acreodi -
Oxyclaenus pugnax Simpson 1935 eutherian
 Multituberculata - Ptilodontidae
Ptilodus cf. tsosiensis Sloan 1981 multituberculate