E-1 (1000-1100 ft), Eniwetok Atol: Middle Miocene, Marshall Islands
collected by ONR and USGS 1952
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Gastropoda
- Turbinidae
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Cynisca pacifica
Ladd 1966
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Gastropoda
- Neogastropoda
- Nassariidae
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Nassarius (Niotha) marshallensis
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Ladd 1977 | ||||||
Gastropoda
- Rissoidae
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Amphithalmus (Cerostraca) jeffcoati
Ladd 1972
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recombined as Pusillina (Haurakia) jeffcoati | |||||||
Rissoina (Phosinella) bikiniensis
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Rissoina (Zebinella) emnanana
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see common names |
Geography
Country: | Marshall Islands |
Coordinates: | 11.4° North, 162.4° East (view map) |
Paleocoordinates: | 7.0° North, 172.4° 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: | Middle Miocene | ||
Age range of interval: | 15.97000 - 11.60800 m.y. ago |
Stratigraphy
Local section: | E-1 | Local bed: | 1050 ft | ||
Regional section: | Eniwetok Atol | Regional bed: | 1050 ft | ||
Stratigraphic resolution: | group of beds | ||||
Stratigraphy comments: STRATIGRAPHIC RELATIONS: From an undifferentiated lithostratigraphic unit. AGE: Middle Miocene, on the basis of foraminiferal biostratigraphy and stratigraphic position. STRATIGRAPHIC POSITION: A composite list from several beds within this section of drill core, from 1000-1100 ft. |
Lithology and environment
Primary lithology: | shelly/skeletal poorly lithified "carbonate" |
Includes fossils? | Y |
Lithology description: LITHOLOGY: Not stated, but presumably carbonate. 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 macrofossils | ||
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: | 77979 | ||
Authorizer: | A. Hendy | Enterer: | A. Hendy |
Modifier: | A. Hendy | Research group: | marine invertebrate |
Created: | 2008-01-24 14:38:58 | Last modified: | 2013-11-25 13:37:23 |
Access level: | authorizer only | Released: | 2009-01-24 14:38:58 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
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] |
Secondary references:
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] |