K-1B (600-700 ft), Eniwetok Atol: Late/Upper Miocene, Marshall Islands
collected by ONR and USGS 1951

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Anthozoa - Helioporacea
Heliopora sp.
Gastropoda - Eucyclidae
Euchelus (Herpetopoma) instrictus (Gould 1849)
Ladd 1966
Euchelus (Euchelus) cf. quadricarinatus (Dilwyn 1817)
Ladd 1966
Gastropoda - Turbinidae
Leptothyra harlani
Ladd 1966
synonym of Collonista
Leptothyra informal sp. A Pease 1869
Ladd 1966
synonym of Collonista
Gastropoda - Neogastropoda - Marginellidae
Marginella (Eratoidea) ringicula
Ladd 1977
original and current combination Eratoidea
Gastropoda - Rissoidae
Rissoina (Zebinella) emnanana
Ladd 1966
Gastropoda - Triphoridae
Triphora (Inella) pyramidalis
Ladd 1972
original and current combination Inella
Bivalvia - Cardiida - Cardiidae
Tridacna sp. Bruguière 1797
Ulvophyceae - Bryopsidales - Halimedaceae
Halimeda sp. Lamouroux 1812
see common names

Geography
Country:Marshall Islands
Coordinates: 11.7° North, 162.3° East (view map)
Paleocoordinates:8.8° North, 168.5° East
Basis of coordinate:estimated from map
Geographic resolution:small collection
Time
Period:Neogene Epoch:Miocene
10 m.y. bin:Cenozoic 6
Key time interval:Late/Upper Miocene
Age range of interval:11.60800 - 5.33300 m.y. ago
Stratigraphy
Local section:K-1B Local bed:650 ft
Local order:top to bottom
Regional section:Eniwetok Atol Regional bed:650 ft
Regional order:top to bottom
Stratigraphic resolution:group of beds
Stratigraphy comments: STRATIGRAPHIC RELATIONS: From an undifferentiated lithostratigraphic unit. AGE: Late Miocene, on the basis of foraminiferal biostratigraphy. STRATIGRAPHIC POSITION: A composite list from several beds within this section of drill core, from 600-700 ft.
Lithology and environment
Primary lithology: unlithified not reported
Includes fossils?Y
Lithology description: SPECIFIC LITHOLOGY: Not stated in text, probably carbonate. LITHIFICATION: Unlithified, based on figured specimens and facies description.
Environment:carbonate indet.
Geology comments: ENVIRONMENT: Carbonate facies. Shallow water. No paleoenvironmental data presented.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection excludes:some macrofossils
Collection methods:core,field collection
Reason for describing collection:taxonomic analysis
Museum repositories:UNSM
Collectors:ONR and USGS Collection dates:1951
Collection method comments: COLLECTOR: Office of Naval Research and USGS, 1951. REPOSITORY: USNM.
Taxonomic list comments:COEVERAGE: Representative, but not exhaustive for gastropoda. NOMENCLATURE: An authoritative publication with relatively modern nomenclature, subgenus- and species-level identifications. IDENTIFIER: H. S. Ladd.
Metadata
Database number:43326
Authorizer:A. Hendy Enterer:A. Hendy
Modifier:A. Hendy Research group:marine invertebrate
Created:2004-08-12 02:44:51 Last modified:2013-11-25 13:37:23
Access level:authorizer only Released:2005-08-12 02:44:51
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]
11410 H. S. Ladd. 1977. Cenozoic fossil mollusks from Western Pacific Islands; Gastropods (Eratoidae through Harpidae). United States Geological Survey Professional Paper 533:1-84 [A. Miller/A. Hendy/J. Millet]