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Hansen Bluff I, Alamosa County, Colorado, USA

Lat/Long (Decimal)	37.3667,-105.75
Co-ordinates Derivation	based on nearby landmark
Given Location	Colorado, United States
Mindat.org Region (for given coordinates)	Alamosa County, Colorado, USA

Collections

Collection	Reference	Stratigraphic Name	Lithology	Age
Hansen Bluff A-10	Rogers K. L., Repenning C. A., et al (1985)	Alamosa	sandstone	0.781 - 0.126 Ma Pleistocene
Hansen Bluff A-8	Rogers K. L., Repenning C. A., et al (1985)	Alamosa	sandstone	0.781 - 0.126 Ma Pleistocene
Hansen Bluff B-10	Rogers K. L., Repenning C. A., et al (1985)	Alamosa	sandstone	0.781 - 0.126 Ma Pleistocene
Hansen Bluff B-13	Rogers K. L., Repenning C. A., et al (1985)	Alamosa	sandstone	0.781 - 0.126 Ma Pleistocene
Hansen Bluff B-2	Rogers K. L., Repenning C. A., et al (1985)	Alamosa	sandstone	0.781 - 0.126 Ma Pleistocene
Hansen Bluff B-3	Rogers K. L. (1987)	Alamosa	sandstone	0.781 - 0.126 Ma Pleistocene
Hansen Bluff B-4	Rogers K. L., Repenning C. A., et al (1985)	Alamosa	sandstone	0.781 - 0.126 Ma Pleistocene
Hansen Bluff B-5	Rogers K. L., Repenning C. A., et al (1985)	Alamosa	sandstone	0.781 - 0.126 Ma Pleistocene
Hansen Bluff B-8	Rogers K. L., Repenning C. A., et al (1985)	Alamosa	sandstone	0.781 - 0.126 Ma Pleistocene
Hansen Bluff C-10	Rogers K. L., Repenning C. A., et al (1985)	Alamosa	sandstone	0.781 - 0.126 Ma Pleistocene
Hansen Bluff C-12	Rogers K. L., Repenning C. A., et al (1985)	Alamosa	sandstone	0.781 - 0.126 Ma Pleistocene
Hansen Bluff C-13	Rogers K. L., Repenning C. A., et al (1985)	Alamosa	sandstone	0.781 - 0.126 Ma Pleistocene
Hansen Bluff C-16	Rogers K. L., Repenning C. A., et al (1985)	Alamosa	sandstone	0.781 - 0.126 Ma Pleistocene
Hansen Bluff C-17	Rogers K. L., Repenning C. A., et al (1985)	Alamosa	sandstone	0.781 - 0.126 Ma Pleistocene
Hansen Bluff C-2	Rogers K. L., Repenning C. A., et al (1985)	Alamosa	sandstone	0.781 - 0.126 Ma Pleistocene
Hansen Bluff C-3	Rogers K. L., Repenning C. A., et al (1985)	Alamosa	sandstone	0.781 - 0.126 Ma Pleistocene
Hansen Bluff C-4	Rogers K. L., Repenning C. A., et al (1985)	Alamosa	sandstone	0.781 - 0.126 Ma Pleistocene
Hansen Bluff C-7	Rogers K. L., Repenning C. A., et al (1985)	Alamosa	sandstone	0.781 - 0.126 Ma Pleistocene
Hansen Bluff CG	Rogers K. L., Repenning C. A., et al (1985)	Alamosa	sandstone	0.781 - 0.126 Ma Pleistocene
Hansen Bluff CT1	Alroy J. (2002)	Alamosa	sandstone	0.781 - 0.126 Ma Pleistocene
Hansen Bluff CT2	Alroy J. (2002)	Alamosa	sandstone	0.781 - 0.126 Ma Pleistocene
Hansen Bluff CT3	Rogers K. L., Repenning C. A., et al (1985)	Alamosa	sandstone	0.781 - 0.126 Ma Pleistocene
Hansen Bluff D-13	Rogers K. L., Repenning C. A., et al (1985)	Alamosa	sandstone	0.781 - 0.126 Ma Pleistocene
Hansen Bluff D-15	Rogers K. L., Repenning C. A., et al (1985)	Alamosa	sandstone	0.781 - 0.126 Ma Pleistocene
Hansen Bluff D-19	Rogers K. L., Repenning C. A., et al (1985)	Alamosa	sandstone	0.781 - 0.126 Ma Pleistocene
Hansen Bluff D-2	Rogers K. L., Repenning C. A., et al (1985)	Alamosa	sandstone	0.781 - 0.126 Ma Pleistocene
Hansen Bluff D-24	Rogers K. L., Repenning C. A., et al (1985)	Alamosa	sandstone	0.781 - 0.126 Ma Pleistocene
Hansen Bluff D-4	Rogers K. L., Repenning C. A., et al (1985)	Alamosa	sandstone	0.781 - 0.126 Ma Pleistocene
Hansen Bluff D-6	Rogers K. L., Repenning C. A., et al (1985)	Alamosa	sandstone	0.781 - 0.126 Ma Pleistocene
Hansen Bluff D-7	Rogers K. L., Repenning C. A., et al (1985)	Alamosa	sandstone	0.781 - 0.126 Ma Pleistocene
Hansen Bluff D-8	Rogers K. L., Repenning C. A., et al (1985)	Alamosa	sandstone	0.781 - 0.126 Ma Pleistocene
Hansen Bluff D-9	Rogers K. L., Repenning C. A., et al (1985)	Alamosa	sandstone	0.781 - 0.126 Ma Pleistocene
Hansen Bluff E-1	Rogers K. L., Repenning C. A., et al (1985)	Alamosa	sandstone	0.781 - 0.126 Ma Pleistocene
Hansen Bluff E-13	Rogers K. L., Repenning C. A., et al (1985)	Alamosa	sandstone	0.781 - 0.126 Ma Pleistocene
Hansen Bluff E-15	Rogers K. L., Repenning C. A., et al (1985)	Alamosa	sandstone	0.781 - 0.126 Ma Pleistocene
Hansen Bluff E-16	Rogers K. L., Repenning C. A., et al (1985)	Alamosa	sandstone	0.781 - 0.126 Ma Pleistocene
Hansen Bluff E-17	Rogers K. L., Repenning C. A., et al (1985)	Alamosa	sandstone	0.781 - 0.126 Ma Pleistocene
Hansen Bluff E-18	Rogers K. L., Repenning C. A., et al (1985)	Alamosa	sandstone	0.781 - 0.126 Ma Pleistocene
Hansen Bluff E-2	Rogers K. L., Repenning C. A., et al (1985)	Alamosa	sandstone	0.781 - 0.126 Ma Pleistocene
Hansen Bluff E-3	Rogers K. L., Repenning C. A., et al (1985)	Alamosa	sandstone	0.781 - 0.126 Ma Pleistocene
Hansen Bluff E-5	Rogers K. L., Repenning C. A., et al (1985)	Alamosa	sandstone	0.781 - 0.126 Ma Pleistocene
Hansen Bluff E-7	Rogers K. L., Repenning C. A., et al (1985)	Alamosa	sandstone	0.781 - 0.126 Ma Pleistocene
Hansen Bluff E-9	Rogers K. L., Repenning C. A., et al (1985)	Alamosa	sandstone	0.781 - 0.126 Ma Pleistocene
Hansen Bluff FT	Rogers K. L., Repenning C. A., et al (1985)	Alamosa	sandstone	0.781 - 0.126 Ma Pleistocene
Hansen Bluff HA1	Rogers K. L., Repenning C. A., et al (1985)	Alamosa	sandstone	0.781 - 0.126 Ma Pleistocene
Hansen Bluff HA3	Rogers K. L., Repenning C. A., et al (1985)	Alamosa	sandstone	0.781 - 0.126 Ma Pleistocene
Hansen Bluff HA4	Rogers K. L., Repenning C. A., et al (1985)	Alamosa	sandstone	0.781 - 0.126 Ma Pleistocene
Hansen Bluff HA5	Rogers K. L., Repenning C. A., et al (1985)	Alamosa	sandstone	0.781 - 0.126 Ma Pleistocene
Hansen Bluff HAFF	Rogers K. L., Repenning C. A., et al (1985)	Alamosa	sandstone	0.781 - 0.126 Ma Pleistocene
Hansen Bluff I	Rogers K. L., Repenning C. A., et al (1985)	Alamosa	sandstone	0.781 - 0.126 Ma Pleistocene
Hansen Bluff PP2	Rogers K. L., Repenning C. A., et al (1985)	Alamosa	sandstone	0.781 - 0.126 Ma Pleistocene
Hansen Bluff TS	Rogers K. L., Repenning C. A., et al (1985)	Alamosa	sandstone	0.781 - 0.126 Ma Pleistocene

Recorded Fossils

Accepted Name	Hierarchy	Age
Aythya affinis species	Animalia : Chordata : Aves : Anseriformes : Anatidae : Aythya : *Aythya affinis*	0.781 - 0.126 Ma Pleistocene
Fulica americana species	Animalia : Chordata : Aves : Gruiformes : Rallidae : Fulica : *Fulica americana*	0.781 - 0.126 Ma Pleistocene
Antilocapridae family	Animalia : Chordata : Mammalia : Artiodactyla : Antilocapridae	0.781 - 0.126 Ma Pleistocene
Camelops sp. genus	Animalia : Chordata : Mammalia : Artiodactyla : Camelidae : *Camelops*	0.781 - 0.126 Ma Pleistocene
Canis sp. genus	Animalia : Chordata : Mammalia : Carnivora : Canidae : *Canis*	0.781 - 0.126 Ma Pleistocene
Leporidae family	Animalia : Chordata : Mammalia : Lagomorpha : Leporidae	0.781 - 0.126 Ma Pleistocene
Sylvilagus sp. genus	Animalia : Chordata : Mammalia : Lagomorpha : Leporidae : *Sylvilagus*	0.781 - 0.126 Ma Pleistocene
Sorex sp. genus	Animalia : Chordata : Mammalia : Soricidae : *Sorex*	0.781 - 0.126 Ma Pleistocene
Sorex arcticus species	Animalia : Chordata : Mammalia : Soricomorpha : Soricidae : Sorex : *Sorex arcticus*	0.781 - 0.126 Ma Pleistocene
Sorex hoyi species	Animalia : Chordata : Mammalia : Soricidae : Sorex : *Sorex hoyi*	0.781 - 0.126 Ma Pleistocene
Equus sp. genus	Animalia : Chordata : Mammalia : Perissodactyla : Equidae : *Equus*	0.781 - 0.126 Ma Pleistocene
Equus scotti species	Animalia : Chordata : Mammalia : Perissodactyla : Equidae : Equus : *Equus scotti*	0.781 - 0.126 Ma Pleistocene
Microtus meadensis species	Animalia : Chordata : Mammalia : Rodentia : Cricetidae : Microtus : *Microtus meadensis*	0.781 - 0.126 Ma Pleistocene
Microtus paroperarius species	Animalia : Chordata : Mammalia : Rodentia : Cricetidae : Microtus : *Microtus paroperarius*	0.781 - 0.126 Ma Pleistocene
Mictomys meltoni		0.781 - 0.126 Ma Pleistocene
Neotoma ozarkensis species	Animalia : Chordata : Mammalia : Rodentia : Cricetidae : Neotoma : *Neotoma ozarkensis*	0.781 - 0.126 Ma Pleistocene
Ondatra annectens species	Animalia : Chordata : Mammalia : Rodentia : Cricetidae : Ondatra : *Fiber annectens*	0.781 - 0.126 Ma Pleistocene
Peromyscus sp. genus	Animalia : Chordata : Mammalia : Rodentia : Cricetidae : *Peromyscus*	0.781 - 0.126 Ma Pleistocene
Phenacomys sp. genus	Animalia : Chordata : Mammalia : Rodentia : Cricetidae : *Phenacomys*	0.781 - 0.126 Ma Pleistocene
Reithrodontomys sp. genus	Animalia : Chordata : Mammalia : Rodentia : Cricetidae : *Reithrodontomys*	0.781 - 0.126 Ma Pleistocene
Geomys sp. genus	Animalia : Chordata : Mammalia : Rodentia : Geomyidae : *Geomys*	0.781 - 0.126 Ma Pleistocene
Dipodomys ordii species	Animalia : Chordata : Mammalia : Rodentia : Heteromyidae : Dipodomys : *Dipodomys ordii*	0.781 - 0.126 Ma Pleistocene
Perognathinae subfamily	Animalia : Chordata : Mammalia : Rodentia : Heteromyidae : Perognathinae	0.781 - 0.126 Ma Pleistocene
Cynomys sp. genus	Animalia : Chordata : Mammalia : Rodentia : Sciuridae : *Cynomys*	0.781 - 0.126 Ma Pleistocene
Sciuridae family	Animalia : Chordata : Mammalia : Rodentia : Sciuridae	0.781 - 0.126 Ma Pleistocene
Spermophilus sp. genus	Animalia : Chordata : Mammalia : Rodentia : Sciuridae : *Spermophilus*	0.781 - 0.126 Ma Pleistocene
Spermophilus lateralis species	Animalia : Chordata : Mammalia : Rodentia : Sciuridae : Callospermophilus : *Callospermophilus lateralis*	0.781 - 0.126 Ma Pleistocene
Spermophilus richardsonii species	Animalia : Chordata : Mammalia : Rodentia : Sciuridae : Urocitellus : *Urocitellus richardsonii*	0.781 - 0.126 Ma Pleistocene
Spermophilus tridecemlineatus species	Animalia : Chordata : Mammalia : Rodentia : Sciuridae : Ictidomys : *Ictidomys tridecemlineatus*	0.781 - 0.126 Ma Pleistocene
Anura order	Animalia : Chordata : Osteichthyes : Eobatrachus : Anura	0.781 - 0.126 Ma Pleistocene
Bufo sp. genus	Animalia : Chordata : Amphibia : Anura : Bufonidae : *Bufo*	0.781 - 0.126 Ma Pleistocene
Bufo woodhousei species	Animalia : Chordata : Osteichthyes : Anura : Bufonidae : Bufo : *Bufo woodhousei*	0.781 - 0.126 Ma Pleistocene
Pseudacris triseriata species	Animalia : Chordata : Osteichthyes : Anura : Hylidae : Pseudacris : *Pseudacris triseriata*	0.781 - 0.126 Ma Pleistocene
Spea bombifrons species	Animalia : Chordata : Osteichthyes : Anura : Pelobatidae : Spea : *Spea bombifrons*	0.781 - 0.126 Ma Pleistocene
Rana sp. genus	Animalia : Chordata : Amphibia : Anura : Ranidae : *Rana*	0.781 - 0.126 Ma Pleistocene
Rana catesbeiana species	Animalia : Chordata : Osteichthyes : Anura : Ranidae : Rana : *Rana catesbeiana*	0.781 - 0.126 Ma Pleistocene
Amblystoma sp. genus	Animalia : Chordata : Osteichthyes : Caudata : Ambystomatidae : *Amblystoma*	0.781 - 0.126 Ma Pleistocene
Ambystoma tigrinum species	Animalia : Chordata : Osteichthyes : Caudata : Ambystomatidae : Amblystoma : *Ambystoma tigrinum*	0.781 - 0.126 Ma Pleistocene
Lacertilia suborder	Animalia : Chordata : Reptilia : Squamata : Lacertilia	0.781 - 0.126 Ma Pleistocene
Heterodon nasicus species	Animalia : Chordata : Reptilia : Squamata : Dipsadidae : Heterodon : *Heterodon nasicus*	0.781 - 0.126 Ma Pleistocene
Pituophis melanoleucus species	Animalia : Chordata : Reptilia : Squamata : Colubridae : Pituophis : *Pituophis melanoleucus*	0.781 - 0.126 Ma Pleistocene
Thamnophis sp. genus	Animalia : Chordata : Reptilia : Squamata : Natricidae : *Thamnophis*	0.781 - 0.126 Ma Pleistocene
Thamnophis sirtalis species	Animalia : Chordata : Reptilia : Squamata : Natricidae : Thamnophis : *Thamnophis sirtalis*	0.781 - 0.126 Ma Pleistocene
Crotalus sp. genus	Animalia : Chordata : Reptilia : Squamata : Viperidae : *Crotalus*	0.781 - 0.126 Ma Pleistocene
Holbrookia sp. genus	Animalia : Chordata : Reptilia : Squamata : Phrynosomatidae : *Holbrookia*	0.781 - 0.126 Ma Pleistocene
Phrynosoma sp. genus	Animalia : Chordata : Reptilia : Squamata : Phrynosomatidae : *Phrynosoma*	0.781 - 0.126 Ma Pleistocene
Sceloporus undulatus species	Animalia : Chordata : Reptilia : Squamata : Phrynosomatidae : Sceloporus : *Sceloporus undulatus*	0.781 - 0.126 Ma Pleistocene

References

Rogers K. L., Repenning C. A., et al (1985) Middle Pleistocene (late Irvingtonian: Nebraskan) climatic changes in south-central Colorado, National Geograpic Research 1 4, 535-563

Rogers K. L. (1987) Pleistocene high altitude amphibians and reptiles from Colorado (Alamosa Local Fauna; Pleistocene; Irvingtonian), Journal of Vertebrate Paleontology 7 1, 82-95

Bell C. J., Barnosky A. D. (2000) The microtine rodents from the Pit locality in Porcupine Cave, Park County, Colorado, Annals of Carnegie Museum 69 2, 93-134

Alroy J. (2002) Synonymies and reidentifications of North American fossil mammals

Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!

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