E-1 (2600-2700 ft), Eniwetok Atol: Early/Lower Miocene, Marshall Islands
collected by ONR and USGS 1952

List of taxa
Where & when
Taphonomy & methods
Metadata & references
Taxonomic list
Gastropoda - Heterostropha - Architectonicidae
? Climacopoma informal sp. A (Fischer 1884)
Ladd 1972
original and current combination Torinia (Climacopoma)
Gastropoda - Turritellidae
Turritella (Turritella) aff. cingulifera Sowerby 1825
Ladd 1972
recombined as Turritella (Kurosioia) cingulifera
Bivalvia - Cardiida - Cardiidae
Cardium sp. Linnaeus 1758
Polyplacophora - Neoloricata - Schizochitonidae
Schizochiton marshallensis Ladd 1966
Ladd 1966
see common names

Country:Marshall Islands
Coordinates: 11.4° North, 162.4° East (view map)
Paleocoordinates:6.0° North, 176.0° East
Basis of coordinate:estimated from map
Geographic resolution:small collection
Period:Neogene Epoch:Miocene
10 m.y. bin:Cenozoic 5
Key time interval:Early/Lower Miocene
Age range of interval:23.03000 - 15.97000 m.y. ago
Local section:E-1 Local bed:2650 ft
Local order:top to bottom
Regional section:Eniwetok Atol Regional bed:2650 ft
Regional order:top to bottom
Stratigraphic resolution:group of beds
Stratigraphy comments: STRATIGRAPHIC RELATIONS: From an undifferentiated lithostratigraphic unit. AGE: Early Miocene, on the basis of foraminiferal biostratigraphy. STRATIGRAPHIC POSITION: A composite list from several beds within this section of drill core, from 2500-2600 ft.
Lithology and environment
Primary lithology:shelly/skeletal,gray poorly lithified "limestone"
Includes fossils?Y
Lithology description: LITHOLOGY: Limestone, friable, brown; made up of foraminifera, algal rods, mollusks, and corals. LITHIFICATION: Poorly-llithified, on the basis of figured specimens.
Environment:carbonate indet.
Geology comments: ENVIRONMENT: Carbonate facies. Shallow water. No paleoenvironmental data presented.
Modes of preservation:body,mold/impression
Size of fossils:macrofossils
Collection methods and comments
Collection methods:core,field collection
Reason for describing collection:taxonomic analysis
Museum repositories:USNM
Collectors:ONR and USGS Collection dates:1952
Collection method comments: COLLECTOR: Office of Naval Research and USGS, 1952. REPOSITORY: USNM.
Taxonomic list comments:COVERAGE: 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.
Database number:43315
Authorizer:A. Hendy Enterer:A. Hendy
Modifier:A. Hendy Research group:marine invertebrate
Created:2004-08-11 14:44:12 Last modified:2013-11-25 13:37:23
Access level:the public Released:2004-08-11 14:44:12
Creative Commons license:CC BY
Reference information

Primary reference:

11427. 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]

Secondary references:

26223 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]
11409 H. S. Ladd. 1972. Cenozoic fossil mollusks from Western Pacific Islands; Gastropods (Turritellidae through Strombidae). United States Geological Survey Professional Paper 532:1-79 [A. Miller/A. Hendy/A. Hendy]