A-6603, Punta Peñasco: Late/Upper Pleistocene, Mexico
collected by Gifford 1950
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Gastropoda
- Lepetellida
- Fissurellidae
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Diodora inaequalis
(Sowerby 1835)
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Gastropoda
- Tegulidae
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Tegula rugosa
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Gastropoda
- Neritidae
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Nerita scabricosta
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Gastropoda
- Naticidae
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Polinices reclusianus
(Deshayes 1839)
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| recombined as Glossaulax reclusiana | ||||||||||
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Gastropoda
- Neogastropoda
- Muricidae
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Murex cf. erythrostomus
Swainson 1831
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| recombined as Hexaplex erythrostomus | ||||||||||
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Acanthina angelica
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Bivalvia
- Ostreida
- Malleidae
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Isognomon chemnitzianum
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= Isognomon (Melina) recognitus
Mabille 1895
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Coan and Valentich-Scott 2012 | |||||||||
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Bivalvia
- Ostreida
- Ostreidae
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Ostrea cf. angelica
Rochebrune 1895
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Bivalvia
- Cardiida
- Veneridae
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Protothaca grata
(Say 1831)
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| recombined as Leukoma grata | ||||||||||
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Chione californiensis
(Broderip and Sowerby I 1835)
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Bivalvia
- Carditida
- Carditidae
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Glans affinis
(Sowerby 1823)
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| recombined as Carditamera affinis | ||||||||||
| SUBSPECIES: Glans affinis californica | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Mexico | State/province: | Sonora |
| Coordinates: | 31.3° North, 113.6° West (view map) | ||
| Paleocoordinates: | 31.3° North, 113.5° West | ||
| Basis of coordinate: | based on nearby landmark | ||
| Geographic resolution: | outcrop |
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
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: STRATIGRAPHIC RELATIONS: From an unknown lithostratigraphic unit, which unconformably overlies granitic rocks. AGE: Late Pleistocene, on the basis of molluscan biostratigraphy. STRATIGRAPHIC POSITION: Fossiliferous stratum exposed in railroad cut, about 10 feet higher stratigraphically than Loc. A-6602. | |||||
Lithology and environment
| Primary lithology: | shelly/skeletal lithified sandstone |
| Lithology description: SPECIFIC LITHOLOGY: Fossiliferous sandstone. LITHIFICATION: Lithified, on the basis of facies description. | |
| Environment: | coastal 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 | ||
| Collectors: | Gifford | Collection dates: | 1950 |
| Collection method comments: COLLECTOR: E.W. Gifford, 1950. REPOSITORY: Unknown, possible SDNHM. | |||
| Taxonomic list comments:COVERAGE: Not an authoritative publication, with somewhat antiquated nomenclature, but with species-resolution identifications | |||
Metadata
| Database number: | 96563 | ||
| Authorizer: | A. Hendy | Enterer: | A. Hendy | Research group: | marine invertebrate |
| Created: | 2010-06-12 12:14:19 | Last modified: | 2013-11-25 13:37:23 |
| Access level: | the public | Released: | 2010-06-12 12:14:19 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 32777. | L. G. Hertlein. 1956. Marine Pleistocene Invertebrates from near Puerto Penasco, Sonora, Mexico. Transactions of the San Diego Society of Natural History 12(8):154-176 [A. Hendy/A. Hendy] |
Secondary references:
| 41911 | E. V. Coan and P. Valentich-Scott. 2012. Bivalve Seashells of Tropical West America. Marine Bivalve Mollusks from Baja California to Northern Peru. Santa Barbara museum of Natural history monographs 6:1-1258 [A. Hendy/A. Hendy/M. Uhen] |