Jason Spring (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 14748: 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.
Show authors, comments, and common names
unclassified | |
Reptilia | |
cf. Allognathosuchus sp. Mook 1921 crocodilian | |
? Plastomenus sp. Cope 1873 turtle | |
| |
Hoplochelys sp. Hay 1908 mud turtle | |
Compsemys victa Leidy 1856 turtle | |
Mammalia | |
? Insectivora indet. Bowdich 1821 insectivoran | |
Ectoconus sp. Cope 1884 condylarth
Ectoconus symbolus Gazin 1941 condylarth | |
Actinopteri | |
cf. Lepisosteus sp. Agassiz 1843 gar | |
Gastropoda | |
Physa sp. Draparnaud 1801 snail | |
Viviparus sp. Montfort 1810 snail | |
Bivalvia | |
"Plesielliptio sp." = Elliptio (Plesielliptio)
"Plesielliptio sp." = Elliptio (Plesielliptio) Russell 1934 freshwater mussel |