E-1 (100-200 ft), Eniwetok Atol (Pleistocene of Marshall Islands)

Where: Marshall Islands (11.4° N, 162.4° E: paleocoordinates 10.0° N, 165.5° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Late/Upper Pleistocene (0.1 - 0.0 Ma)

• STRATIGRAPHIC RELATIONS: From an undifferentiated lithostratigraphic unit. AGE: Late Pleistocene, on the basis of stratigraphic position. STRATIGRAPHIC POSITION: A composite list from several beds within this section of drill core, from 100-200 ft.

• group of beds-level stratigraphic resolution

Environment/lithology: reef, buildup or bioherm; poorly lithified, shelly/skeletal, yellow, calcareous limestone

• ENVIRONMENT: Carbonate facies. Shallow water, presumably reefal. No paleoenvironmental data presented.
• LITHOLOGY: Coral limestone; white friable limestone, recrystalized in places to yellow calcite, mollusks abundant. Cuttings can be aragonitic. LITHIFICATION: Poorly-lithified, on the basis of facies description and figured specimens.

Size class: macrofossils

Preservation: mold/impression, recrystallized

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

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 43321: authorized by Austin Hendy, entered by Austin Hendy on 11.08.2004

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.
Show authors, comments, and common names
Gastropoda
 Seguenzioidea - Eucyclidae
Euchelus (Euchelus) cf. quadricarinatus1, Euchelus (Herpetopoma) instrictus1
 Trochoidea - Liotiidae
Liotina (Dentarene) loculosa1
 Trochoidea - Turbinidae
"Leptothyra picta" = Collonista1
"Leptothyra picta" = Collonista1 snail
 Lepetellida - Fissurellidae
Emarginula (Emarginula) cf. peasei1
 Sorbeoconcha - Triphoridae
Triphora (Mastonia) intermissa2
 Neogastropoda - Muricidae
"Drupa (Morula) concatenata" = Morula3
"Drupa (Morula) concatenata" = Morula3 murex snail
 Sorbeoconcha - Rissoidae
Zebina (Morchiella) cooperi1
 Vanikoroidea - Vanikoridae
Vanikoro aff. kanakarum2
 Vanikoroidea - Eulimidae
Eulima "sp. A"3
Eulima "sp. A"3 Risso 1826 snail
Bivalvia
 Arcida - Arcidae
Arcidae indet.
Arcidae indet. Lamarck 1809 clam
Listed as "arcid"
 Mytilida - Mytilidae
Mytilus sp.
Mytilus sp. Linnaeus 1758 mussel
 Cardiida - Veneridae
Veneridae indet.
Veneridae indet. Rafinesque 1815 venus clam
Listed as "venerid"
1Ladd 1966; 2Ladd 1972; 3Ladd 1977