Rancho La Amapola: Late/Upper Pleistocene, Mexico
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Mammalia
- Cingulata
- Glyptodontidae
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Glyptodontidae indet.
Burmeister 1879
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| "glyptodont" | ||||||||||
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Mammalia
- Megatheriidae
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Eremotherium laurillardi
(Lund 1842)
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Carbot-Chanona et al. 2022 | |||||||||
| Polaco-Ramos, 1981; McDonald, 2002 | ||||||||||
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Mammalia
- Mylodontidae
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Mylodontidae indet.
Ameghino 1889
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| "mylodont" | ||||||||||
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Mammalia
- Carnivora
- Canidae
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Canis dirus
Leidy 1858
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| recombined as Aenocyon dirus | ||||||||||
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Mammalia
- Carnivora
- Ursidae
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Arctodus sp.
Leidy 1854
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Mammalia
- Carnivora
- Felidae
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Felis atrox
Leidy 1853
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| recombined as Panthera leo atrox | ||||||||||
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Mammalia
- Perissodactyla
- Equidae
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Equus cedralensis n. sp.
Alberdi et al. 2014
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Alberdi et al. 2014 | |||||||||
| Holotype. A mandible ramus fragment formed by two specimens: one p2-m3 right row (DP-2675 I-2 15), and a second fragment of the symphysis with the anterior dentition (DP-2674 I-2 8), articulated together and stored at the Paleontological Collection (DP-INAH) of the Laboratorio de Arqueozoología “M. en C. Ticul Álvarez Solórzano” Subdirección de Laboratorios y Apoyo Académico, INAH in Mexico City (Figure 9). Paratype series. Fragments of mandible ramii with remains of several teeth, p3-m3 right and left (DP-4577) and several upper row: P2-M2 left (P2 DP-3841, P3-P4 DP-3842, and M1-M2 DP- 3839), and three P2-M1 (DP-3829 left, and DP-3830 and DP-4587 right). | ||||||||||
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Equus conversidens
Owen 1869
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Alberdi et al. 2014 | |||||||||
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Equus sp.
Linnaeus 1758
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| "two species" | ||||||||||
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= Equus mexicanus
Hibbard 1955
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Alberdi et al. 2014 | |||||||||
| original and current combination Equus (Hesperohippus) mexicanus | ||||||||||
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Mammalia
- Camelidae
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Camelops sp.
Leidy 1854
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Mammalia
- Proboscidea
- Mammutidae
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Mammutidae indet.
Hay 1922
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| "mastodont" | ||||||||||
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Mammalia
- Proboscidea
- Elephantidae
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Mammuthus sp.
Brookes 1828
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| "mammoth" | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Mexico | State/province: | San Luis Potosi |
| Coordinates: | 23.8° North, 100.7° West (view map) | ||
| Paleocoordinates: | 23.8° North, 100.7° West | ||
| Altitude: | 1700 meters |
Time
| Period: | Quaternary | Epoch: | Pleistocene |
| Stage: | Late/Upper Pleistocene | 10 m.y. bin: | Cenozoic 6 |
| Key time interval: | Late/Upper Pleistocene | ||
| Age range of interval: | 0.12900 - 0.01170 m.y. ago |
Stratigraphy
| Stratigraphy comments: Radioisotopic_date error method comments 0.01077 0.00022 C14 0.01557 0.00048 C14 0.017587 0.000157 C14 0.02438 0.00096 C14 0.03184 0.0016 C14 |
Lithology and environment
| Environment: | lacustrine indet. |
| Glacial or sequence phase: | late glacial |
| Geology comments: edge of a "spring or ephemeral lake"; Pleistocene fossils apparently from units VI (youngest) through XII (oldest); one more, imprecise date from unfossiliferous unit VII omitted; dates in text and more detailed figure do not agree, so the latter are used instead; additional, concordant dates are given by Mirambell 1994 | |
Taphonomy
| Associated major elements: | some |
| Disassociated major elements: | some |
Collection methods and comments
| Collection methods: | selective quarrying,surface (float) |
| Reason for describing collection: | archaeological analysis |
| Taxonomic list comments:omits Recent mammals | |
Metadata
| Also known as: | El Cedral | ||
| Database number: | 71277 | ||
| Authorizer: | J. Alroy, P. Mannion, E. Vlachos | Enterer: | J. Alroy, E. Vlachos, G. Varnham |
| Modifier: | J. Alroy | ||
| Created: | 1999-02-09 15:22:56 | Last modified: | 2007-09-18 13:41:18 |
| Access level: | the public | Released: | 1999-02-09 15:22:56 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 23923. | J. L. Lorenzo and L. Mirambell. 1986. Preliminary report on archaeological and paleoenvironmental studies in the area of El Cedral, San Luis Potosi, Mexico 1977- 1980. 107-113 [J. Alroy/J. Alroy/M. Uhen] |
Secondary references:
| 72313 | M. T. Alberdi, J. Arroyo-Cabrales, A. H. Marin-Leyva and O. J. Polaco. 2014. Study of Cedral Horses and their place in the Mexican Quaternary. Revista Mexicana de Ciencias Geológicas 31(2):221-237 [E. Vlachos/E. Vlachos] | |
| 81882 | G. Carbot-Chanona, L. E. Gómez-Pérez, and M. A. Coutiño-José. 2022. A new specimen of Eremotherium laurillardi (Xenarthra, Megatheriidae) from the Late Pleistocene of Chiapas, southern of Mexico, and comments about the distribution of the species in Mexico. Boletín de la Sociedad Geológica Mexicana 74(2):A070322 [P. Mannion/G. Varnham] |