Mammalian Biochronology of Blancan and Irvingtonian
Significant mammalian faunas of Pliocene (Blancan) and early Pleistocene (early and medial Irvingtonian) age are known from the Rio Grande and Gila River valleys of New Mexico. Fossiliferous exposures of the Santa Fe Group in the Rio Grande Valley, extending from the Española basin in northern New...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.693.5195 2023-05-15T17:48:12+02:00 Mammalian Biochronology of Blancan and Irvingtonian Early Pleistocene Faunas New Mexico Gary S. Morgan Spencer G. Lucas The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.693.5195 http://digitallibrary.amnh.org/dspace/bitstream/handle/2246/447/B279a12.pdf?sequence%3D15 en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.693.5195 http://digitallibrary.amnh.org/dspace/bitstream/handle/2246/447/B279a12.pdf?sequence%3D15 Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://digitallibrary.amnh.org/dspace/bitstream/handle/2246/447/B279a12.pdf?sequence%3D15 text ftciteseerx 2016-01-08T18:30:51Z Significant mammalian faunas of Pliocene (Blancan) and early Pleistocene (early and medial Irvingtonian) age are known from the Rio Grande and Gila River valleys of New Mexico. Fossiliferous exposures of the Santa Fe Group in the Rio Grande Valley, extending from the Española basin in northern New Mexico to the Mesilla basin in southernmost New Mexico, have produced 21 Blancan and 6 Irvingtonian vertebrate assemblages; three Blancan faunas occur in the Gila River Valley in the Mangas and Duncan basins in southwestern New Mexico. More than half of these faunas contain five or more species of mammals, and many have associated radioisotopic dates and/or magnetostratigraphy, allowing for correlation with the North American land-mammal biochronology. Two diverse early Blancan (4.5–3.6 Ma) faunas are known from New Mexico, the Truth or Consequences Local Fauna (LF) from the Palomas basin and the Buckhorn LF from the Mangas basin. The former contains five species of mammals indicative of the early Blancan: Borophagus cf. B. hilli, Notolagus lepusculus, Neo-toma quadriplicata, Jacobsomys sp., and Odocoileus brachyodontus. Associated magnetostra-tigraphic data suggest correlation with either the Nunivak or Cochiti Subchrons of the Gilbert Text Nunivak Unknown Grande Valley ENVELOPE(-58.990,-58.990,-62.198,-62.198) |
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English |
description |
Significant mammalian faunas of Pliocene (Blancan) and early Pleistocene (early and medial Irvingtonian) age are known from the Rio Grande and Gila River valleys of New Mexico. Fossiliferous exposures of the Santa Fe Group in the Rio Grande Valley, extending from the Española basin in northern New Mexico to the Mesilla basin in southernmost New Mexico, have produced 21 Blancan and 6 Irvingtonian vertebrate assemblages; three Blancan faunas occur in the Gila River Valley in the Mangas and Duncan basins in southwestern New Mexico. More than half of these faunas contain five or more species of mammals, and many have associated radioisotopic dates and/or magnetostratigraphy, allowing for correlation with the North American land-mammal biochronology. Two diverse early Blancan (4.5–3.6 Ma) faunas are known from New Mexico, the Truth or Consequences Local Fauna (LF) from the Palomas basin and the Buckhorn LF from the Mangas basin. The former contains five species of mammals indicative of the early Blancan: Borophagus cf. B. hilli, Notolagus lepusculus, Neo-toma quadriplicata, Jacobsomys sp., and Odocoileus brachyodontus. Associated magnetostra-tigraphic data suggest correlation with either the Nunivak or Cochiti Subchrons of the Gilbert |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Early Pleistocene Faunas New Mexico Gary S. Morgan Spencer G. Lucas |
spellingShingle |
Early Pleistocene Faunas New Mexico Gary S. Morgan Spencer G. Lucas Mammalian Biochronology of Blancan and Irvingtonian |
author_facet |
Early Pleistocene Faunas New Mexico Gary S. Morgan Spencer G. Lucas |
author_sort |
Early Pleistocene |
title |
Mammalian Biochronology of Blancan and Irvingtonian |
title_short |
Mammalian Biochronology of Blancan and Irvingtonian |
title_full |
Mammalian Biochronology of Blancan and Irvingtonian |
title_fullStr |
Mammalian Biochronology of Blancan and Irvingtonian |
title_full_unstemmed |
Mammalian Biochronology of Blancan and Irvingtonian |
title_sort |
mammalian biochronology of blancan and irvingtonian |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.693.5195 http://digitallibrary.amnh.org/dspace/bitstream/handle/2246/447/B279a12.pdf?sequence%3D15 |
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ENVELOPE(-58.990,-58.990,-62.198,-62.198) |
geographic |
Grande Valley |
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Grande Valley |
genre |
Nunivak |
genre_facet |
Nunivak |
op_source |
http://digitallibrary.amnh.org/dspace/bitstream/handle/2246/447/B279a12.pdf?sequence%3D15 |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.693.5195 http://digitallibrary.amnh.org/dspace/bitstream/handle/2246/447/B279a12.pdf?sequence%3D15 |
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Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766153458836045824 |