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
Tegula snodgrassi
Gastropoda - Cerithiidae
Cerithium adustum
Gastropoda - Neogastropoda - Mitridae
Mitra gausapata
Mitra lens
Gastropoda - Neogastropoda - Columbellidae
Pyrene castanea
Gastropoda - Neogastropoda - Muricidae
Acanthina grandis
Gastropoda - Tonnidae
Malea ringens (Swainson 1822)
Gastropoda - Ranellidae
Cymatium lineatum (Broderip 1833)
recombined as Reticutriton lineatus
Gastropoda - Cypraeidae
Cypraea nigropunctata Gray 1828
recombined as Pseudozonaria nigropunctata
Gastropoda - Hipponicidae
Hipponix pilosus
Bivalvia - Arcida - Arcidae
Arca pacifica (Sowerby 1833)
Bivalvia - Ostreida - Ostreidae
Ostrea palmula (Carpenter 1857)
recombined as Saccostrea palmula
Bivalvia - Lucinida - Lucinidae
Anodontia spherica (Dall and Ochsner 1928)
Ctena galapagana (Dall 1901)
Bivalvia - Cardiida - Chamidae
Chama species
Bivalvia - Cardiida - Veneridae
Chione sp. von Mühlfield 1811
Echinoidea - Cidaroida - Cidaridae
Eucidaris thouarsii (Valencienncs 1846)
original and current combination Cidaris thouarsii
Echinoidea - Clypeasteroida - Mellitidae
Encope micropora Agassiz 1841
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]