Ferron Mountain (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 14736: 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.
 Lepisosteiformes - Lepisosteidae
cf. Lepisosteus sp. Agassiz 1843 gar
 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
 Tribosphenida - Arctocyonidae
Loxolophus pentacus Cope 1888 condylarth
Desmatoclaenus hermaeus1 Gazin 1941 condylarth
 Ungulata - Hyopsodontidae
Valenia wilsoni4 Van Valen 1978 condylarth
may include "P. acolytus" according to Van Valen 1988, who refers to the "Gas Tank Fauna" but must mean this record
 Ungulata - Periptychidae
Periptychus coarctatus1 Cope 1883 condylarth
Ectoconus ditrigonus Cope 1882 condylarth
additional specimen from OMNH V829 "probably the same as... Ferron Mountain" described by Cifelli et al. 1995
Ectoconus symbolus Gazin 1939 condylarth
Oxyacodon ferronensis Archibald et al. 1983 condylarth
Anisonchus cf. oligistus Gazin 1941 condylarth
Anisonchus athelas Van Valen 1978 condylarth
 Multituberculata - Taeniolabididae
cf. Taeniolabis taoensis Cope 1882 multituberculate