E-1 (1700-1800 ft), Eniwetok Atol: Early/Lower Miocene, Marshall Islands
collected by ONR and USGS 1952

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Gastropoda - Turbinidae
Leptothyra glareosa (Gould 1861)
Ladd 1966
recombined as Collonista glareosa
Gastropoda - Vanikoridae
Vanikoro cancellata Lamarck 1822
Ladd 1972
Gastropoda - Diastomatidae
Obtortio failingi
Ladd 1972
Obtortio dancei
Ladd 1972
Gastropoda - Cerithiidae
Bittium (Bittiolum) toddae
Ladd 1972
original and current combination Bittiolum
Gastropoda - Rissoidae
Rissoina (Phosinella) bikiniensis
Ladd 1966
Alvania (Taramellia) kenneyi
Ladd 1966
synonym of Manzonia (Alvinia)
Gastropoda - Triphoridae
Triphora sp. Blainville 1828
see common names

Geography
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
Time
Period:Neogene Epoch:Miocene
10 m.y. bin:Cenozoic 5
Key time interval:Early/Lower Miocene
Age range of interval:23.03000 - 15.98000 m.y. ago
Stratigraphy
Local section:E-1 Local bed:1750 ft
Local order:top to bottom
Regional section:Eniwetok Atol Regional bed:1750 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 1700-1800 ft.
Lithology and environment
Primary lithology:shelly/skeletal,gray poorly lithified "limestone"
Includes fossils?Y
Lithology description: SPECIFIC LITHOLOGY: Limestone, gray, porous, friable, foraminiferal. LITHIFICATION: Poorly-llithified, on the basis of figured specimens.
Environment:carbonate indet.
Geology comments: ENVIRONMENT: Carbonate facies. Shallow water, presumably reefal. No paleoenvironmental data presented.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection excludes:some genera
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: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.
Metadata
Database number:43318
Authorizer:A. Hendy Enterer:A. Hendy
Modifier:A. Hendy Research group:marine invertebrate
Created:2004-08-11 14:54:33 Last modified:2013-11-25 13:37:23
Access level:authorizer only Released:2005-08-11 14:54:33
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]