El Camarón: Barstovian, Mexico
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Mammalia
- Proboscidea
- Gomphotheriidae
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? Gomphotherium sp.
Burmeister 1837
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Mammalia
- Perissodactyla
- Equidae
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Merychippus sp.
Leidy 1856
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| "sensu lato" | ||||||||||
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Neohipparion sp.
Gidley 1903
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Bravo-Cuevas 2000 | |||||||||
| diagnosis seems very clear-cut; JA pers. obs. 10.10.00 | ||||||||||
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Cormohipparion aff. quinni
Woodburne 1996
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Bravo-Cuevas and Ferrusquia-Villafranca 2008 | |||||||||
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Mammalia
- Antilocapridae
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Antilocapridae indet.
Gray 1866
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= Merycodus sabulonis
Matthew and Cook 1909
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Jimenez et al. 1999 | |||||||||
| recombined as Cosoryx (Paracosoryx) sabulonis | ||||||||||
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Mammalia
- Tayassuidae
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Prosthennops sp.
Matthew and Gidley 1904
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= Tayassuidae indet.
Palmer 1897
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Jimenez et al. 1999 | |||||||||
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Mammalia
- Camelidae
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Pliauchenia sp.
Cope 1875
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= Camelidae indet.
Gray 1821
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Jimenez et al. 1999 | |||||||||
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cf. Procamelus sp.
Leidy 1858
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Jimenez et al. 1999 | |||||||||
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cf. Protolabis sp.
Cope 1876
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Jimenez et al. 1999 | |||||||||
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Mammalia
- Carnivora
- Canidae
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Canidae indet.
Fischer de Waldheim 1817
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Jimenez et al. 1999 | |||||||||
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Mammalia
- Carnivora
- Mustelidae
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Plionictis oaxacaensis
Ferrusquia-Villafranca 1990
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| see common names | ||||||||||
Geography
| Country: | Mexico | State/province: | Oaxaca |
| Coordinates: | 16.6° North, 96.0° West (view map) | ||
| Paleocoordinates: | 17.1° North, 93.2° West | ||
| Basis of coordinate: | estimated from map | ||
| Geographic resolution: | outcrop |
Time
| Period: | Neogene | Epoch: | Miocene |
| 10 m.y. bin: | Cenozoic 5 | ||
| *Period: | Tertiary | ||
| Key time interval: | Barstovian | ||
| Age range of interval: | 16.30000 - 12.50000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | El Camarón | ||||
| Stratigraphic resolution: | member | ||||
| Stratigraphy comments: formation "is estimated between 200 and 250 m... The fossil mammals occurred in the lower member (usually the lower part), and were collected at several sites [seven shown on map]... from a zone ~30 m thick at the most"; it intertongues with the Yautepec Tuff, dated at 15.0 +/- 0.8 to 16.7+/- 0.71 by K-Ar (Bravo-Cuevas and Ferrusquía-Villafranca 2006) | |||||
Lithology and environment
| Primary lithology: | tuffaceous poorly lithified siltstone |
| Secondary lithology: | tuffaceous poorly lithified sandstone |
| Lithology description: formation is "Friable to moderately indurated tuffaceous siltstone, sandstone and conglomerate; lower part [yielding the fossils] is finer grained and thinly bedded" (Bravo-Cuevas and Ferrusquía-Villafranca 2006) | |
| Environment: | terrestrial indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | field collection |
| Reason for describing collection: | general faunal/floral analysis |
| Taxonomic list comments:material of "Merychippus" cf. primus and "M." cf. sejunctus of Bravo-Cuevas and Ferrusquía-Villafranca 2006 may derive from this locality or others near the town of Nejapa | |
Metadata
| Also known as: | Nejapa | ||
| Database number: | 18722 | ||
| Authorizer: | J. Alroy, J. Marcot | Enterer: | J. Alroy, J. Marcot |
| Modifier: | J. Alroy | Research group: | vertebrate |
| Created: | 1993-02-18 00:00:00 | Last modified: | 2007-01-14 17:11:00 |
| Access level: | the public | Released: | 1993-02-18 00:00:00 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 1483. | I. Ferrusquia-Villafranca. 1990. Biostratigraphy of the Mexican Continental Miocene: Part I, Introduction and the Northwestern and Central Faunas. Part II, The Southeastern (Oaxacan) Faunas. Part III, The Southeasternmost (Chiapasan) Fauna and Concluding Remarks On the Discussed Vertebrate Record. Paleontologia Mexicana 56:1-149 [J. Alroy/J. Alroy/J. Marcot] |
Secondary references:
| 1128 | V. M. Bravo-Cuevas. 2000. The oldest known record of the hipparion horse neohipparion from middle Miocene of Oaxaca state, Southeastern Mexico. Journal of Vertebrate Paleontology 20(3):31A [J. Alroy/J. Alroy/J. Ju] | |
| 19645 | V. M. Bravo-Cuevas and I. Ferrusquía-Villafranca. 2006. Merychippus (Mammalia, Perissodactyla, Equidae) from the Middle Miocene of state of Oaxaca, southeastern Mexico. Géobios 39:771-784 [J. Alroy/J. Alroy] | |
| 51406 | V. M. Bravo-Cuevas and I. Ferrusquia-Villafranca. 2008. Cormohipparion (Mammalia, Perissodactyla, Equidae) from the middle Miocene of Oaxaca, southeastern Mexico. Journal of Vertebrate Paleontology 28(1):243-250 [J. Marcot/J. Marcot] | |
| 2030 | E. Jimenez, I. Ferrusquia, and V. M. Bravo. 1999. The Middle Miocene Mammalian faunas of southeastern Mexico. Journal of Vertebrate Paleontology 19(3):56A [J. Alroy/J. Alroy/J. Ju] |