Pearson Mesa: Blancan, New Mexico
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Mammalia
- Cingulata
- Glyptodontidae
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Glyptotherium arizonae
Gidley 1926
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Morgan and Lucas 1999 | |||||||||
| synonym of Glyptotherium texanum | ||||||||||
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Mammalia
- Megalonychidae
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Megalonyx leptostomus
Cope 1893
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Morgan and Lucas 1999 | |||||||||
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Mammalia
- Proboscidea
- Gomphotheriidae
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Gomphotheriidae indet.
Hay 1922
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| "Cuvieronius or Rhynchotherium" Morgan and Lucas 1999b | ||||||||||
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Stegomastodon mirificus
(Leidy 1858)
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Stegomastodon mirificus
(Leidy 1858)
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Morgan and Lucas 1999 | |||||||||
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Mammalia
- Carnivora
- Felidae
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Felidae indet.
Gray 1821
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Morgan and Lucas 1999 | |||||||||
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Mammalia
- Perissodactyla
- Equidae
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Nannippus phlegon
(Hay 1899)
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= Nannippus peninsulatus
Cope 1885
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Alroy 2002 | |||||||||
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Equus sp.
Linnaeus 1758
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= Equus simplicidens
Cope 1892
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Morgan and Lucas 1999 | |||||||||
| recombined as Plesippus simplicidens | ||||||||||
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Mammalia
- Tayassuidae
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Platygonus sp.
Leconte 1848
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Morgan and Lucas 1999 | |||||||||
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Mammalia
- Camelidae
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Hemiauchenia sp.
Gervais and Ameghino 1880
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Morgan and Lucas 1999 | |||||||||
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Camelops sp.
Leidy 1854
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Morgan and Lucas 1999 | |||||||||
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Mammalia
- Rodentia
- Geomyidae
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Geomys persimilis
Hay 1927
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= Nerterogeomys cf. persimilis
Hay 1927
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Alroy 2002 | |||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | New Mexico | County: | Hidalgo |
| Coordinates: | 32.7° North, 109.0° West (view map) | ||||
| Paleocoordinates: | 32.8° North, 108.4° West | ||||
| Basis of coordinate: | estimated from map | ||||
| Geographic resolution: | outcrop |
Time
| 10 m.y. bin: | Cenozoic 6 | ||
| *Period: | Late/Upper Tertiary | *Epoch: | Middle Pliocene | *Local age/stage: | Middle Blancan |
| Key time interval: | Blancan | ||
| Age range of interval: | 4.70000 - 1.40000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | Gila Conglomerate | ||||
| Stratigraphic resolution: | member | ||||
| Stratigraphy comments: 4 localities in about 15 m of section, but later material of Morgan and Lucas 1999b comes from 60 m of section and may be diachronous | |||||
Lithology and environment
| Primary lithology: | siltstone |
| Environment: | fluvial indet. |
| Geology comments: all localities are shown as coming from a siltstone facies | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils,mesofossils |
| Disassociated major elements: | some |
| Disassociated minor elements: | many |
Collection methods and comments
| Collection methods: | bulk,surface (float),sieve,field collection |
| Reason for describing collection: | biostratigraphic analysis |
Metadata
| Database number: | 19655 | ||
| Authorizer: | J. Alroy | Enterer: | J. Alroy |
| Modifier: | J. Alroy | Research group: | vertebrate |
| Created: | 1993-02-18 00:00:00 | Last modified: | 2002-09-25 21:03:47 |
| Access level: | the public | Released: | 1993-02-18 00:00:00 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 6199. | 5% 23340 | Y. Tomida. 1987. Small mammal fossils and correlation of continental deposits, Safford and Duncan basins, Arizona. National Science Museum 1-141 [J. Alroy/J. Alroy/J. Alroy] |
Secondary references:
| 6294 | J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari] | |
| 2617 | G. S. Morgan and S. G. Lucas. 1999. Pliocene (Blancan) vertebrates from Pearson Mesa, Duncan Basin, New Mexico-Arizona border. Journal of Vertebrate Paleontology 19(3):65A [J. Alroy/J. Alroy/J. Ju] |