F-1 (0-100 ft), Eniwetok Atol (Holocene of Marshall Islands)

Where: Marshall Islands (11.7° N, 162.2° E: paleocoordinates 11.0° N, 163.8° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Holocene (0.0 - 0.0 Ma)

• STRATIGRAPHIC RELATIONS: From an undifferentiated lithostratigraphic unit. AGE: Holocene, on the basis of stratigraphic position. STRATIGRAPHIC POSITION: A composite from several beds within the section of drill core of 0-100 ft.

• group of beds-level stratigraphic resolution

Environment/lithology: unlithified, coarse-grained, shelly/skeletal mixed carbonate-siliciclastic sediments

• ENVIRONMENT: Shallow marine, carbonate facies.
• SPECIFIC LITHOLOGY: Debris, unconsolidated coarse, platy, poorly sorted, mixture of bioclastic elements. LITHIFICATION: Unlithified, on the basis of figured specimens.

Size class: macrofossils

Preservation: mold/impression

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 and S.O. Schlanger. 1960. Drilling operations on Eniwetok Atoll. United States Geological Survey Professional Paper 260(Y):863-903 [A. Miller/A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 43334: authorized by Austin Hendy, entered by Austin Hendy on 12.08.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

• COEVERAGE: Representative, but not exhaustive of bivalvia and gastropoda. NOMENCLATURE: Mixture of some slightly antiquated and broad identifications and more modern nomenclature, subgenus- and species-level identifications from an authoritative publication. IDENTIFIER: H. S. Ladd.
Gastropoda
 Seguenzioidea - Eucyclidae
 Lepetellida - Fissurellidae
 Trochoidea - Trochidae
Hybochelus cancellatus1 Krauss 1848 top snail
Synaptocochlea concinna1 Gould 1845 top snail
Trochus (Trochus) histrio1 Reeve 1848 top snail
 Trochoidea - Phasianellidae
Gabrielona raunana1 Ladd 1966 snail
 Trochoidea - Turbinidae
"Leptothyra balnearii" = Collonista1, Leptothyra inepta1
"Leptothyra balnearii" = Collonista1 snail
Leptothyra inepta1 Gould 1861 snail
 Trochoidea - Skeneidae
 Cerithioidea - Diastomatidae
 Sorbeoconcha - Naticidae
Sinum "sp. A"3 Röding 1798 moon snail
 Sorbeoconcha - Cerithiopsidae
 Sorbeoconcha - Triphoridae
 Sorbeoconcha - Rissoidae
"Amphithalmus (Cerostraca) jeffcoati" = Pusillina (Haurakia) jeffcoati1 Ladd 1972 snail
 Neogastropoda - Mitridae
Bivalvia
 Mytilida - Mytilidae
Mytilus sp. Linnaeus 1758 mussel
 Arcida - Arcidae
Arcidae indet. Lamarck 1809 clam
Listed as "arcids"
 Cardiida - Cardiidae
Cardium sp. Linnaeus 1758 cockle
 Cardiida - Tellinidae
Tellinidae indet. Blainville 1814 tellin clam
Listed as "tellinids"
 Cardiida - Veneridae
Veneridae indet. Rafinesque 1815 venus clam
Listed as "venerids"
 Lucinida - Lucinidae
Lucinidae indet. Fleming 1828 clam
Listed as "lucinids"
Polyplacophora
 Neoloricata - Schizochitonidae
Loricella "sp. A"1 Pilsbry 1893 chiton
Anthozoa
 Alcyonacea -
Tubipora sp. Linnaeus 1758
Florideophyceae
 Hapalidiales - Corallinophycidae
"Lithothamnium sp." = Lithothamnion
"Lithothamnium sp." = Lithothamnion Heydrich 1897
Ulvophyceae
 Bryopsidales - Halimedaceae
Halimeda sp. Lamouroux 1812