CAS Loc. 850, Quebrada Mancora [Negritos Fm]: Early/Lower Eocene, Peru
collected by May

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Gastropoda - Turritellidae
Turritella dickersoni Woods 1922
Turritella conquistadorana n. sp. Hanna and Israelsky 1925
Gastropoda - Neogastropoda - Volutidae
Volutospina peruviana (Douvillé 1921)
recombined as Peruluta peruviana
Gastropoda - Neogastropoda - Clavatulidae
Surcula mayi n. sp. Hanna and Israelsky 1925
Gastropoda - Neogastropoda - Fasciolariidae
Clavilithes burtti n. sp. Hanna and Israelsky 1925
Clavilithes pacificus Woods 1922
see common names

Geography
Country:Peru
Coordinates: 3.7° South, 80.7° West (view map)
Paleocoordinates:5.9° South, 69.8° West
Basis of coordinate:based on nearby landmark
Geographic resolution:outcrop
Time
Period:Paleogene Epoch:Eocene
Stage:Ypresian 10 m.y. bin:Cenozoic 2
Key time interval:Early/Lower Eocene
Age range of interval:56.00000 - 47.80000 m.y. ago
Stratigraphy
Formation:Negritos
Stratigraphic resolution:bed
Stratigraphy comments: STRATIGRAPHIC RELATIONS: Lithostratigraphic unit not stated in text; possibly from Negritos Fm. AGE: Not stated in text; Negritos Fm=Early Eocene. STRATIGRAPHIC POSITION: Stated in text to be from transition beds between Heath Shales and Trigal Sandstone.
Lithology and environment
Primary lithology: not reported
Lithology description: SPECIFIC LITHOLOGY: Unknown. LITHIFICATION: Unknown.
Environment:marine indet.
Geology comments: ENVIRONMENT: Shallow marine setting.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection excludes:some genera
Collection methods:surface (in situ),field collection
Reason for describing collection:taxonomic analysis
Museum repositories:CAS
Collectors:May
Collection method comments: COLLECTOR: A. May, C. 1910's. REPOSITORY: CAS, California
Taxonomic list comments:COVERAGE: Comprehensive, but not exhaustive for gastropods and bivalves. NOMENCLATURE: Authoritative publication, with species-level assignments, but antiquated nomenclature.
Metadata
Also known as:Arthur May Coll. 5
Database number:93759
Authorizer:A. Hendy Enterer:A. Hendy
Modifier:A. Hendy Research group:marine invertebrate
Created:2010-02-01 12:23:39 Last modified:2013-11-25 13:37:23
Access level:authorizer only Released:2011-02-01 12:23:39
Creative Commons license:CC BY
Reference information

Primary reference:
31881. G. D. Hanna and M. C. Israelsky. 1925. Contributions to the Tertiary paleontology of Peru. Proceedings of the California Academy of Sciences 14(2):37-75 [A. Hendy/A. Hendy/J. Alroy]