F-1 (600-700 ft), Eniwetok Atol (Miocene of Marshall Islands)

Where: Marshall Islands (11.7° N, 162.2° E: paleocoordinates 8.8° N, 168.4° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Late/Upper Miocene (11.6 - 5.3 Ma)

• 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 600-700 ft.

• group of beds-level stratigraphic resolution

Environment/lithology: reef, buildup or bioherm; unlithified carbonate

• ENVIRONMENT: Carbonate facies. Shallow water, assumed to be reefal. No paleoenvironmental data presented.
• SPECIFIC LITHOLOGY: Not stated, but presumably carbonate facies. LITHIFICATION: Unlithified, on the basis facies description and figured specimens.

Size class: macrofossils

Collected by ONR and USGS in 1952; reposited in the UNSM

Collection methods: core,

• COLLECTOR: Office of Naval Research and USGS, 1952. 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 77984: authorized by Austin Hendy, entered by Austin Hendy on 24.01.2008

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.
 Neoloricata - Schizochitonidae
 Ptenoglossa - Thaididae
 Sorbeoconcha - Rissoidae
 Sorbeoconcha - Naticidae
"Polinices (Polinices) mammilla" = Natica (Natica) mamilla2
"Polinices (Polinices) mammilla" = Natica (Natica) mamilla2 Linnaeus 1758 moon snail
 Neogastropoda - Mangeliidae
 Neogastropoda - Terebridae
"Terebra (Strioterebrum) "sp. A"" = Strioterebrum3
"Terebra (Strioterebrum) "sp. A"" = Strioterebrum3 Sacco 1891 auger snail
 Neogastropoda - Columbellidae
 Neogastropoda - Nassariidae
 Neogastropoda - Coralliophilidae
 Neogastropoda - Mitridae
 Neogastropoda - Costellariidae
 Sorbeoconcha - Strombidae
 Sorbeoconcha - Hipponicidae
Hipponix (Sabia) conicus1 Schumacher 1817 hoof shell
 Sorbeoconcha - Cerithiopsidae
 Neritoidea - Neritidae
Nerita (Amphinerita) insculpta R├ęcluz 1841 snail
 Trochoidea - Turbinidae
"Leptothyra balnearii" = Collonista, "Leptothyra wellsi" = Collonista
"Leptothyra balnearii" = Collonista snail
"Leptothyra wellsi" = Collonista snail
 Trochoidea - Phasianellidae
Phasianella sp. Lamarck 1804 snail