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Alamosa Formation

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Alamosa Formation

Stratigraphic range: Pleistocene PreꞒ Ꞓ O S D C P T J K Pg N ↓
TypeFormation
Location
RegionColorado
CountryUnited States

The Alamosa Formation is a geologic formation in Colorado. It preserves fossils. The formation was deposited by Lake Alamosa, a paleolake that existed from the Pliocene to the middle Pleistocene.

See also

References

  1. Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.
  2. Machette, Michael N.; Marchetti, David W.; Thompson, Ren A. (2007). "Chapter G: Ancient Lake Alamosa and the Pliocene to middle Pleistocene evolution of the Rio Grande". Rocky Mountain Section Friends of the Pleistocene Guidebook (PDF). Open-file report ; 2007-1193. Reston, Virginia: U.S. Department of the Interior, U.S. Geological Survey. pp. 157–167.
Chronostratigraphy of Colorado
Cenozoic chronostratigraphy of Colorado
Ph
Cz
Q
Pleistocene
N
Pliocene
Zanclean
Miocene
Messinian
Aquitanian
  • Grouse Mountain Basalt
    • Pe
    Oligocene
    Chattian
  • Arikaree Formation
    • Eocene
  • Blanco Basin Formation
  • Cuchara Formation
  • D2 Sequence
  • Dawson Arkose
  • Echo Park Formation
  • Farisita Formation
  • Huerfano Formation
  • Green River Formation
  • Poison Canyon Formation
  • Uinta Formation
  • Wasatch Formation
    • Paleocene
    Mesozoic chronostratigraphy of Colorado
    Ph
    Mz
    K
    Upper
  • Benton Formation
  • Carlile Shale
  • Castle Gate Formation
  • Cliff House Sandstone
  • Codell Sandstone
  • Dakota Group
  • Fort Hays Limestone
  • Fox Hills Formation
  • Fruitland Formation
  • Graneros Shale
  • Greenhorn Shale
  • Hygiene Formation
  • Juana Lopez
  • Kirtland Formation
  • Kremmling Formation
  • Lance Formation
  • Laramie Formation
  • Lewis Formation
  • Lion Canyon Formation
  • Mancos Shale
  • Menefee Formation
  • Mowry Shale
  • Niobrara Formation
  • Pando Porphyry
  • Pictured Cliffs Formation
  • Pierre Shale
  • Point Lookout Formation
  • Smoky Hill Chalk
  • Trinidad Formation
  • Vermejo Formation
  • Williams Fork Formation
    • Lower
    J
    Upper
    Middle
    Lower
    Tr
    Upper
    Middle
    Anisian
    Lower
    Olenekian
  • Chugwater Formation
    • Induan
    Paleozoic chronostratigraphy of Colorado
    Ph
    Pz
    P
    Lopingian
    Changhsingian
  • Chugwater Formation
  • Lykins Formation
  • Taloga Formation
    • Cisuralian
    Asselian
    C
    ⁋
    Gzhelian
  • Fountain Formation
  • Madera Formation
    • M
    Tournaisian
  • Williams Canyon Formation
    • D
    Upper
    Famennian
    O
    Upper
  • Fremont Limestone
  • Viola Formation
    • Middle
    Lower
    Tremadocian
    Є
    Furongian
    Stage 10
  • Dotsero Formation
    • Paibian
    Series 3
    Guzhangian
    Precambrian chronostratigraphy of Colorado
    pЄ
    ♇
    Z
    Tonian
  • Uinta Mountain Group
    • X
    Siderian
  • Owiyukuts Complex


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