F-1 (300-400 ft), Eniwetok Atol: Late Pliocene, Marshall Islands
collected by ONR and USGS 1952
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Polyplacophora
- Chitonida
- Chitonidae
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| Ladd 1966 | ||||||||||
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Bivalvia
- Cardiida
- Cardiidae
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Cardium sp.
Linnaeus 1758
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Bivalvia
- Cardiida
- Veneridae
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Veneridae indet.
Rafinesque 1815
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| Listed as "venerids" | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Marshall Islands |
| Coordinates: | 11.7° North, 162.2° East (view map) |
| Paleocoordinates: | |
| Basis of coordinate: | estimated from map |
| Geographic resolution: | small collection |
Time
| Period: | Neogene | Epoch: | Pliocene |
| Stage: | Piacenzian | 10 m.y. bin: | Cenozoic 6 |
| Key time interval: | Late Pliocene | ||
| Age range of interval: | 3.6 - 2.58 m.y. ago |
Stratigraphy
| Local section: | F-1 | Local bed: | 350 ft | ||
| Local order: | top to bottom | ||||
| Regional section: | Eniwetok Atol | Regional bed: | 350 ft | ||
| Regional order: | top to bottom | ||||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: STRATIGRAPHIC RELATIONS: From an undifferentiated lithostratigraphic unit. AGE: Late Pleistocene, on the basis of stratigraphic position. STRATIGRAPHIC POSITION: A composite from several beds within the section of drill core of 300-400 ft. | |||||
Lithology and environment
| Primary lithology: | fine,coarse,shelly/skeletal unlithified "limestone" |
| Includes fossils? | Y |
| Lithology description: SPECIFIC LITHOLOGY: Coral and shell limestone; fine to coarse, uncemeneted to weakly cemented limestone made up of coral fragments and mollusk shells, many worn and broken. LITHIFICATION: Unlithified, on the basis facies description and figured specimens. | |
| Environment: | reef, buildup or bioherm |
| Geology comments: ENVIRONMENT: Carbonate facies. Shallow water, assumed to be 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: | UNSM | ||
| 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: | 43332 | ||
| Authorizer: | A. Hendy | Enterer: | A. Hendy |
| Modifier: | A. Hendy | Research group: | marine invertebrate |
| Created: | 2004-08-12 02:50:43 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | authorizer only | Released: | 2005-08-12 02:50:43 |
| Creative Commons license: | CC0 |
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] |