Hansen Bluff D-19: Middle Pleistocene, Colorado

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia - Rodentia - Geomyidae
Geomys sp. Rafinesque 1817
Amphibia - Temnospondyli - Urodela
Ambystoma tigrinum (Green 1825)
see common names

Geography
Country:United States State/province:Colorado County:Alamosa
Coordinates: 37.4° North, 105.8° West (view map)
Paleocoordinates:37.4° North, 105.8° West
Basis of coordinate:based on nearby landmark
Altitude:2300 meters
Geographic resolution:small collection
Time
Period:Quaternary Epoch:Pleistocene
Stage:Chibanian 10 m.y. bin:Cenozoic 6
*Epoch:Middle Pleistocene - Late/Upper Pleistocene
*Local age/stage:Late/Upper Irvingtonian
Key time interval:Middle Pleistocene
Age range of interval:0.77400 - 0.12900 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Alamosa
Local section:Hansn Local bed:3
Local order:bottom to top
Stratigraphic resolution:bed
Lithology and environment
Primary lithology: sandstone
Environment:fine channel fill
Taphonomy
Modes of preservation:body
Size of fossils:mesofossils
Disassociated minor elements:some
Collection methods and comments
Collection methods:bulk,sieve,field collection
Reason for describing collection:paleoecologic analysis
Metadata
Also known as:Alamosa
Database number:27669
Authorizer:J. Alroy Enterer:J. Alroy
Modifier:J. Alroy Research group:vertebrate
Created:2002-12-17 20:45:16 Last modified:2002-12-17 22:45:17
Access level:the public Released:2002-12-17 20:45:16
Creative Commons license:CC BY
Reference information

Primary reference:
2939. 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]