CAS Loc. 1305, Isla Baltra: Pliocene, Ecuador
collected by Slevin 1927
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Gastropoda
- Tegulidae
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Tegula snodgrassi
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Gastropoda
- Cerithiidae
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Cerithium adustum
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Gastropoda
- Neogastropoda
- Mitridae
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Mitra gausapata
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Mitra lens
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Gastropoda
- Neogastropoda
- Columbellidae
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Pyrene castanea
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Gastropoda
- Neogastropoda
- Muricidae
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Acanthina grandis
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Gastropoda
- Tonnidae
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Malea ringens
(Swainson 1822)
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Gastropoda
- Ranellidae
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Cymatium lineatum
(Broderip 1833)
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recombined as Reticutriton lineatus | |||||||
Gastropoda
- Cypraeidae
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Cypraea nigropunctata
Gray 1828
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recombined as Pseudozonaria nigropunctata | |||||||
Gastropoda
- Hipponicidae
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Hipponix pilosus
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Bivalvia
- Arcida
- Arcidae
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Arca pacifica
(Sowerby 1833)
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Bivalvia
- Ostreida
- Ostreidae
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Ostrea palmula
(Carpenter 1857)
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recombined as Saccostrea palmula | |||||||
Bivalvia
- Lucinida
- Lucinidae
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Anodontia spherica
(Dall and Ochsner 1928)
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Ctena galapagana
(Dall 1901)
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Bivalvia
- Cardiida
- Chamidae
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Chama species
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Bivalvia
- Cardiida
- Veneridae
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Chione sp.
von Mühlfield 1811
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Echinoidea
- Cidaroida
- Cidaridae
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Eucidaris thouarsii
(Valencienncs 1846)
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original and current combination Cidaris thouarsii | |||||||
Echinoidea
- Clypeasteroida
- Mellitidae
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Encope micropora
Agassiz 1841
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see common names |
Geography
Country: | Ecuador |
Coordinates: | 0.4° South, 90.3° West (view map) |
Paleocoordinates: | 0.7° South, 92.2° 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 - 2.58800 m.y. ago |
Stratigraphy
Stratigraphic resolution: | bed | ||||
Stratigraphy comments: STRATIGRAPHIC RELATIONS: From unnamed lithostratigraphic unit, for which stratigraphic relationships are not discussed. AGE: Pliocene. STRATIGRAPHIC POSITION: The fossil-bearing bed on the south end of the bay on the west side of the island is about 3 meters (10 feet) thick and dips about 5° or 6° south. Large angular blocks of lava in the lower portion of the bed offer evidence of deposition very near the shore. |
Lithology and environment
Primary lithology: | poorly lithified "siliciclastic" |
Lithology description: SPECIFIC LITHOLOGY: Not stated in text, other than fossil bearing. LITHIFICATION: Poorly-lithified, based on figured specimens. | |
Environment: | marine indet. |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils |
Collection methods and comments
Collection methods: | bulk,surface (in situ),sieve,field collection | ||
Reason for describing collection: | taxonomic analysis | ||
Museum repositories: | CAS | ||
Collectors: | Slevin | Collection dates: | 1927 |
Collection method comments: COLLECTOR: J.R. Slevin, 1927. REPOSITORY: CAS. | |||
Taxonomic list comments:COVERAGE: Exhaustive for molluscs. NOMENCLATURE: Authoritative publication, with somewhat antiquated nomenclature, and species-resolution identifications. |
Metadata
Database number: | 96595 | ||
Authorizer: | A. Hendy | Enterer: | A. Hendy | Research group: | marine invertebrate |
Created: | 2010-06-13 20:10:20 | Last modified: | 2013-11-25 13:37:23 |
Access level: | the public | Released: | 2010-06-13 20:10:20 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
32786. | L. G. Hertlein. 1972. Pliocene fossils from Baltra (South Seymour) Island, Galápagos Islands. Proceedings of the California Academy of Sciences 39(3):25-46 [A. Hendy/A. Hendy] |