List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
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Hippnoe californica
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1 specimen | ||||||
Gastropoda
- Neotaenioglossa
- Calyptraeidae
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Crucibulum spinosum
Conrad 1855
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1 specimen | ||||||
Gastropoda
- Neogastropoda
- Fasciolariidae
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Fasciolaria princeps
Sowerby 1825
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1 specimen | ||||||
recombined as Triplofusus princeps | |||||||
Gastropoda
- Tonnidae
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Malea ringens
(Swainson 1822)
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1 specimen | ||||||
Gastropoda
- Opisthobranchia
- Bullidae
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Bullaria striata
(Bruguiére 1792)
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2 specimens | ||||||
original and current combination Bulla striata | |||||||
Bivalvia
- Pectinida
- Anomiidae
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Anomia subcostata
Conrad 1855
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6 specimens | ||||||
synonym of Anomia peruviana | |||||||
Bivalvia
- Pectinida
- Pectinidae
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Pecten mendenhalli
Arnold 1906
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4 specimens | ||||||
recombined as Argopecten mendenhalli | |||||||
Pecten keepi
Arnold 1906
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2 specimens | ||||||
recombined as Euvola keepi | |||||||
Pecten carrizoensis
Arnold 1906
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1 specimen | ||||||
recombined as Flabellipecten carrizoensis | |||||||
Bivalvia
- Ostreida
- Pinnidae
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Pinna mendenhalli n. sp.
Hanna 1926
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2 specimens | ||||||
recombined as Pinna (Pinna) mendenhalli | |||||||
Pinna latrania n. sp.
Hanna 1926
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1 specimen | ||||||
Bivalvia
- Ostreida
- Ostreidae
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Ostrea vespertina
Conrad 1855
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7 specimens | ||||||
recombined as Dendostrea vespertina | |||||||
Bivalvia
- Lucinida
- Lucinidae
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Codakia colpoica
Dall 1901
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3 specimens | ||||||
Echinoidea
- Clypeasteroida
- Clypeasteridae
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Clypeaster bowersi
Weaver 1908
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2 specimens | ||||||
Echinoidea
- Clypeasteroida
- Mellitidae
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Encope tenuis
Kew 1914
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2 specimens | ||||||
Chondrichthyes
- Lamniformes
- Otodontidae
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Carcharodon arnoldi
Jordan 1898
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1 specimen | ||||||
= Otodus megalodon
Agassiz 1835
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Boessenecker et al. 2019 | ||||||
see common names |
Geography
Country: | United States | State/province: | California | County: | Imperial |
Coordinates: | 32.8° North, 116.0° West (view map) | ||||
Paleocoordinates: | 32.6° North, 114.5° West | ||||
Basis of coordinate: | based on nearby landmark | ||||
Geographic resolution: | outcrop |
Stratigraphy
Formation: | Imperial | ||||
Stratigraphic resolution: | bed | ||||
Stratigraphy comments: Age and Formation after Boessenecker et al 2019.
STRATIGRAPHIC RELATIONS: From the Imperial Formation, for which lithostratigraphic relationships are not discussed. AGE: Early Pliocene, based on existing (more recent) collections. STRATIGRAPHIC POSITION: From unknown position within formation. |
Lithology and environment
Primary lithology: | poorly lithified sandstone |
Includes fossils? | Y |
Lithology description: SPECIFIC LITHOLOGY: Fossil collections generally originate from sandstone layers. LITHIFICATION: Poorly lithified, on the basis of figured specimens. | |
Environment: | marine indet. |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils |
Collection methods and comments
Collection methods: | bulk,field collection | ||
Reason for describing collection: | taxonomic analysis | ||
Museum repositories: | USGS | ||
Collectors: | Bowers | Collection dates: | 1904 |
Collection method comments: COLLECTORS: S. Bowers, 1904. REPOSITORY: USGS. | |||
Taxonomic list comments:COVERAGE: Exhaustive for molluscs. NOMENCLATURE: Authoritative publication, with antiquated nomenclature, and species-resolution identifications. |
Metadata
Database number: | 96541 | ||
Authorizer: | A. Hendy, M. Uhen | Enterer: | A. Hendy, M. Uhen |
Modifier: | M. Uhen | Research group: | marine invertebrate |
Created: | 2010-06-11 19:29:29 | Last modified: | 2019-02-19 12:30:25 |
Access level: | the public | Released: | 2010-06-11 19:29:29 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
32774. | G. D. Hanna. 1926. Paleontology of Coyote Mountain, Imperial County, California. Proceedings of the California Academy of Sciences 14(18):427-503 [A. Hendy/A. Hendy] |
Secondary references:
13595 | R. W. Boessenecker, D. J. Eheret, D. J. Long, M. Churchill, E. Martin and S. J. Boessenecker. 2019. The Early Pliocene extinction of the mega-toothed shark Otodus megalodon: a view from the eastern North Pacific. PeerJ 7:e6088 [M. Uhen/M. Uhen/M. Uhen] |