F-1 (700-800 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 700-800 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 77985: 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.
Gastropoda
 Heterostropha - Architectonicidae
"Philippia (Psilaxis) radiata" = Psilaxis1, Heliacus variegatus1
"Philippia (Psilaxis) radiata" = Psilaxis1 snail
Heliacus variegatus1 Gmelin 1791 snail
 Lepetellida - Fissurellidae
Scutus (Nannoscutum) "sp. A" Iredale 1937 snail
 Trochoidea - Turbinidae
 Cerithioidea - Cerithiidae
"Cerithium (Conocerithium) egenum" = Cerithium1, Clypeomorus verbeeki1, Colina (Ischnocerithium) rostrata1, Rhinoclavis (Rhinoclavis) powelli1, "Rhinoclavis (Pseudovertagus) floraensis" = Clava (Pseudovertagus)1
"Cerithium (Conocerithium) egenum" = Cerithium1 cerith snail
Clypeomorus verbeeki1 cerith snail
"Rhinoclavis (Pseudovertagus) floraensis" = Clava (Pseudovertagus)1 cerith snail
 Cerithioidea - Potamididae
Potamides wardi1 horn snail
 Sorbeoconcha - Plesiotrochidae
 Sorbeoconcha - Hipponicidae
 Sorbeoconcha - Cerithiopsidae
 Sorbeoconcha - Triphoridae
"Triphora (Inella) maharatai" = Inella1
"Triphora (Inella) maharatai" = Inella1 snail
 Sorbeoconcha - Rissoidae
 Neogastropoda - Columbellidae
 Neogastropoda - Mitridae
 Neogastropoda - Mangeliidae
 Neogastropoda - Muricidae
"Coralliophila (Fusomurex) "sp. B"" = Hirtomurex2, Coralliophila (Pseudomurex) macneili2
"Coralliophila (Fusomurex) "sp. B"" = Hirtomurex2 Coen 1922 murex snail
 Sorbeoconcha - Strombidae
 Sorbeoconcha - Vermetidae
Polyplacophora
 Neoloricata - Schizochitonidae
Angiospermae
 Magnoliales - Myristicaceae
Virola cancellata1 magnoliids