2A (1000-1100 ft), Bikini Island (Miocene of Marshall Islands)

Where: Marshall Islands (11.6° N, 165.4° E: paleocoordinates 7.1° N, 175.5° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Middle Miocene (16.0 - 11.6 Ma)

• STRATIGRAPHIC RELATIONS: From an undifferentiated lithostratigraphic unit. AGE: Middle Miocene, on the basis of foraminiferal biostratigraphy and stratigraphic position. STRATIGRAPHIC POSITION: A composite from several beds within the section of drill core of 1000-1100 ft.

• group of beds-level stratigraphic resolution

Environment/lithology: unlithified lithology not reported

• EMVIRONMENT: Not stated, but shallow marine carbonate facies.
• LITHOLOGY: Unknown, probably carbonate. LITHIFICATION: Unlithified, on the basis of figured specimens.

Size class: macrofossils

Collected by JTF in 1947; reposited in the USNM

Collection methods: core,

• COLLECTOR: Operation Crossroads, Joint Task Force One, 1947. REPOSITORY: USNM.

Primary reference: 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]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 78023: authorized by Austin Hendy, entered by Austin Hendy on 25.01.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

• COEVERAGE: Representative, but not exhaustive for gastropoda. NOMENCLATURE: An authoritative publication with relatively modern nomenclature, subgenus- and species-level identifications. IDENTIFIER: H. S. Ladd.
Gastropoda
 Sorbeoconcha - Littorinidae
Tectarius (Subditotectarius) rehderi n. sp. Ladd 1966 periwinkle
 Sorbeoconcha - Rissoidae
 Neogastropoda - Costellariidae
 Neogastropoda - Mitridae
 Cerithioidea - Cerithiidae
 Trochoidea - Turbinidae
"Astraea (Bellastraea) "sp. D"" = Astralium
"Astraea (Bellastraea) "sp. D"" = Astralium Link 1807 snail
 Neritoidea - Neritidae
Polyplacophora
 Neoloricata - Schizochitonidae