CAS 39411, Rancho el Refugio: Pliocene, Mexico
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Gastropoda
- Neotaenioglossa
- Calyptraeidae
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Crepidula cf. arenata
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Gastropoda
- Turritellidae
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Turritella cf. gonostoma
Valenciennes 1832
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Gastropoda
- Tonnidae
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Malea ringenss
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Gastropoda
- Neogastropoda
- Fasciolariidae
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Fusinus sp.
Rafinesque 1815
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| see common names | |||||||
Geography
| Country: | Mexico | State/province: | Baja California Sur |
| Coordinates: | 24.8° North, 111.7° West (view map) | ||
| Paleocoordinates: | 24.6° North, 110.4° West | ||
| Basis of coordinate: | based on nearby landmark | ||
| Geographic resolution: | outcrop |
Time
| Period: | Neogene | Epoch: | Pliocene |
| 10 m.y. bin: | Cenozoic 6 | ||
| Key time interval: | Pliocene | ||
| Age range of interval: | 5.33300 - 2.58000 m.y. ago |
Stratigraphy
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: STRATIGRAPHIC RELATIONS: From unknown lithostratigraphic unit; mapped as Ysidro Fm, but also referred to as Salada Fm; not resolved by enterer. AGE: Middle Pliocene, on the basis of macrofossil biostratigraphy. STRATIGRAPHIC POSITION: From silty and sandy beds from unknown position within sequence. | |||||
Lithology and environment
| Primary lithology: | poorly lithified siltstone |
| Secondary lithology: | poorly lithified sandstone |
| Includes fossils? | Y |
| Includes fossils? | Y |
| Lithology description: SPECIFIC LITHOLOGY: Silty and sandy beds. LITHIFICATION: Poorly-lithified, on the basis of comments in text. | |
| Environment: | coastal indet. |
Taphonomy
| Modes of preservation: | body,original calcite |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | surface (in situ),field collection |
| Reason for describing collection: | taxonomic analysis |
| Museum repositories: | CAS |
| Collection method comments: COLLECTORS: Multiple collectors from the CAS. REPOSITORY: CAS | |
| Taxonomic list comments:COVERAGE: Exhaustive for molluscs; whale bones mentioned but not identified. NOMENCLATURE: Authoritative publication, with somewhat antiquated nomenclature, but with species-resolution identifications. | |
Metadata
| Database number: | 96576 | ||
| Authorizer: | A. Hendy | Enterer: | A. Hendy | Research group: | marine invertebrate |
| Created: | 2010-06-13 11:18:09 | Last modified: | 2013-11-25 13:37:23 |
| Access level: | the public | Released: | 2010-06-13 11:18:09 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 32782. | L. G. Hertlein. 1966. Pliocene fossils from Rancho El Refugio, Baja California and Cerralvo Island, Mexico. Proceedings of the California Academy of Sciences 30(14):265-284 [A. Hendy/A. Hendy] |