Also known as Alamosa
Where: Alamosa County, Colorado (37.4° N, 105.8° W: paleocoordinates 37.4° N, 105.8° W)
• coordinate based on nearby landmark
• small collection-level geographic resolution
When: Alamosa Formation, Middle Pleistocene (0.8 - 0.1 Ma)
• bed-level stratigraphic resolution
Environment/lithology: fine channel fill; sandstone
Size class: mesofossils
Collection methods: bulk, sieve,
Primary reference: K. L. Rogers, C. A. Repenning, R. M. Forester, E. E. Larson, S. A. Hall, G. R. Smith, E. Anderson and T. J. Brown. 1985. Middle Pleistocene (late Irvingtonian: Nebraskan) climatic changes in south-central Colorado. National Geograpic Research 1(4):535-563 [J. Alroy/J. Alroy/J. Alroy]more details
Purpose of describing collection: paleoecologic analysis
PaleoDB collection 20361: authorized by John Alroy, entered by John Alroy on 18.02.1993
Creative Commons license: CC BY (attribution)
Taxonomic list
| Reptilia | |
|
Sceloporus undulatus Bosc 1802 eastern fence lizard
Holbrookia maculata lesser earless lizard | |
|
Crotalus viridis Rafinesque 1818 prairie rattlesnake | |
|
Heterodon nasicus Baird and Girard 1852 western hognose snake
Thamnophis sp. Fitzinger 1843 garter snake
Thamnophis elegans garter snake
Thamnophis sirtalis Linnaeus garter snake | |
| Mammalia | |
|
Reithrodontomys sp. Giglioli 1874 harvest mouse
Microtus paroperarius Hibbard 1944 vole | |
|
Geomys sp. Rafinesque 1817 pocket gopher | |
|
Spermophilus tridecemlineatus Mitchell 1821 thirteen-lined ground squirrel | |
|
Leporidae indet. Fischer de Waldheim 1817 rabbit | |
| Amphibia | |
"Scaphiopus bombifrons" = Spea bombifrons
"Scaphiopus bombifrons" = Spea bombifrons Cope 1863 Plains spadefoot | |
|
Rana catesbeiana Shaw 1802 American bullfrog | |
|
Pseudacris triseriata Wied 1838 western chorus frog | |
|
Ambystoma tigrinum Green 1825 tiger salamander | |