2B (800-900 ft), Bikini Island: Late/Upper Miocene, Marshall Islands
collected by JTF 1947

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Polyplacophora - Neoloricata - Acanthochitonidae
Acanthochitona sp. Gray 1821
Gastropoda - Turbinidae
Leptothyra harlani
synonym of Collonista
Leptothyra wellsi
synonym of Collonista
Gastropoda - Lepetellida - Scissurellidae
Scissurella (Scissurella) declinans (Watson 1886)
Gastropoda - Rissoidae
Rissoina (Schwartziella) rilebana
see common names

Geography
Country:Marshall Islands
Coordinates: 11.6° North, 165.4° East (view map)
Paleocoordinates:8.6° North, 171.6° East
Basis of coordinate:estimated from map
Geographic resolution:small collection
Time
Period:Neogene Epoch:Miocene
10 m.y. bin:Cenozoic 6
Key time interval:Late/Upper Miocene
Age range of interval:11.60800 - 5.33300 m.y. ago
Stratigraphy
Local section:2B Local bed:850 ft
Local order:top to bottom
Regional section:Bikini Island Regional bed:850 ft
Regional order:top to bottom
Stratigraphic resolution:group of beds
Stratigraphy comments: STRATIGRAPHIC RELATIONS: From an undifferentiated lithostratigraphic unit. AGE: Late Miocene, on the basis of foraminiferal biostratigraphy. STRATIGRAPHIC POSITION: A composite from several beds within the section of drill core of 800-900 ft.
Lithology and environment
Primary lithology: unlithified not reported
Includes fossils?Y
Lithology description: LITHOLOGY: Unknown, probably carbonate. LITHIFICATION: Unlithified, on the basis of figured specimens.
Environment:carbonate indet.
Geology comments: EMVIRONMENT: Not stated, but shallow marine carbonate facies.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection excludes:some macrofossils
Collection methods:core,field collection
Reason for describing collection:taxonomic analysis
Museum repositories:USNM
Collectors:JTF Collection dates:1947
Collection method comments: COLLECTOR: Operation Crossroads, Joint Task Force One, 1947. REPOSITORY: USNM.
Taxonomic list comments:COEVERAGE: Representative, but not exhaustive for gastropoda. NOMENCLATURE: An authoritative publication with relatively modern nomenclature, subgenus- and species-level identifications. IDENTIFIER: H. S. Ladd.
Metadata
Database number:78025
Authorizer:A. Hendy Enterer:A. Hendy
Research group:marine invertebrate
Created:2008-01-25 07:23:00 Last modified:2013-11-25 13:37:23
Access level:authorizer only Released:2009-01-25 07:22:59
Creative Commons license:CC BY
Reference information

Primary reference:

26223. H. S. Ladd. 1966. Chitons and Gastropods (Haliotidae through Adeorbidae) from Western Pacific Islands. United States Geological Survey Professional Paper 531:1-98 [A. Hendy/A. Hendy/J. Millet]