Rancho Algodones: Blancan, Mexico
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Chondrichthyes
- Dalatiidae
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Dalatiidae indet.
Gray 1851
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Chondrichthyes
- Carcharhiniformes
- Galeocerdidae
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Galeocerdo rosaliensis
Applegate 1978
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Chondrichthyes
- Carcharhiniformes
- Carcharhinidae
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Carcharhinus altimus
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Carcharhinus velox
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Carcharhinus leucas
(Valenciennes 1839)
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Carcharhinus albimarginatus
(Rüppell 1837)
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Carcharhinus brachyurus
(Gunther 1870)
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Carcharhinus obscurus
(Le Sueur 1818)
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Chondrichthyes
- Orectolobiformes
- Ginglymostomatidae
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Ginglymostoma sp.
Müller and Henle 1838
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Chondrichthyes
- Lamniformes
- Lamnidae
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Isurus oxyrinchus
Rafinesque 1810
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Carcharodon carcharias
(Linnaeus 1758)
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Carcharodon sulcidens
(Agassiz 1835)
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| synonym of Carcharodon carcharias | ||||||||||
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Chondrichthyes
- Lamniformes
- Otodontidae
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Carcharodon megalodon
(Agassiz 1835)
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| recombined as Otodus megalodon | ||||||||||
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Mammalia
- Rodentia
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Rodentia indet.
Bowdich 1821
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Tedford et al. 2009 | |||||||||
| IGM 2921; "indeterminate myomorph rodent" | ||||||||||
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Mammalia
- Lagomorpha
- Leporidae
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Notolagus sp.
Wilson 1937
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Tedford et al. 2009 | |||||||||
| IGM 2904 | ||||||||||
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Mammalia
- Carnivora
- Canidae
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Cerdocyon avius n. sp.
Torres and Ferrusquia 1981
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Tedford et al. 2009 | |||||||||
| recombined as Ferrucyon avius | ||||||||||
| IGM 2903 - type; 'named' as Cerdocyon ? avius | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Mexico | State/province: | Baja California Sur | County: | San Jose del Cabo |
| Coordinates: | 23.2° North, 109.6° West (view map) | ||||
| Paleocoordinates: | 23.0° North, 108.6° West | ||||
| Basis of coordinate: | stated in text | ||||
| Geographic resolution: | small collection |
Time
| 10 m.y. bin: | Cenozoic 6 |
| Key time interval: | Blancan |
| Age range of interval: | 4.70000 - 1.40000 m.y. ago |
Stratigraphy
| Formation: | Refugio | ||||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: Formerly Salada Formation. | |||||
Lithology and environment
| Primary lithology: | calcareous sandstone |
| Includes fossils? | Y |
| Lithology description: Arenisca arcosica de grano medio a grueso, cementada por carbonato de calcio, de color amarillo claro y de estratificación mediana a gruesa; conglomerado de grano fino, limolita y lutita de estratificación lenti cular o convulsiva | |
| Environment: | marginal marine indet. |
| Geology comments: Shallow marine deposits, with a probable depth of 30 meters | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection excludes: | some genera |
| Reason for describing collection: | taxonomic analysis |
| Taxonomic list comments:Rancho Algodones Local Fauna | |
Metadata
| Also known as: | IGM 92; BCS-46 | ||
| Database number: | 154118 | ||
| Authorizer: | M. Uhen, J. Marcot | Enterer: | M. Uhen, J. Marcot |
| Modifier: | P. Mannion | Research group: | vertebrate |
| Created: | 2014-01-27 20:08:58 | Last modified: | 2020-08-21 11:26:34 |
| Access level: | the public | Released: | 2014-01-27 20:08:58 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 49969. | L. Espinosa-Arrubarrena and S. P. Applegate. 1981. Selacifauna Pliocenica de Baja California Sur, Mexico y sus problemas de correlacion regional. Anais do Congresso Latino-Americano Paleontologia 2(2):667-681 [M. Uhen/M. Uhen] |
Secondary references:
| 52088 | L. G. Barnes. 2002. Evolutionary history of the fossil marine mammals of Mexico. In M. M. Ballesteros, J. A. Cabrales (eds.), Advances en los Estudios Paleomastozoologicos en Mexico 125-225 [M. Uhen/M. Uhen] | |
| 73493 | D. Ruiz-Ramoni, F. J. Prevosti, S. Bartolini Lucenti, M. Montellano-Ballesteros, and A. L. Carreño. 2020. The Pliocene canid Cerdocyon avius was not the type of fox that we thought. Journal of Vertebrate Paleontology e1774889:1-9 [P. Mannion/P. Mannion] | |
| 52058 | R. H. Tedford, X. Wang, and B. E. Taylor. 2009. Phylogenetic Systematics of the North American Fossil Caninae (Carnivora: Canidae). Bulletin of the American Museum of Natural History 325:1-218 [J. Marcot/J. Marcot/G. Lloyd] |