E-1 (1800-1900 ft), Eniwetok Atol: Early Miocene, Marshall Islands
collected by ONR and USGS 1952
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Bivalvia
- Cardiida
- Cardiidae
|
|||||||
|
Cardium sp.
Linnaeus 1758
|
|||||||
|
Gastropoda
- Seguenziidae
|
|||||||
| Ladd 1966 | |||||||
|
Gastropoda
- Phasianellidae
|
|||||||
| Ladd 1966 | |||||||
|
Gastropoda
- Turritellidae
|
|||||||
| Ladd 1972 | |||||||
| see common names | |||||||
Geography
| Country: | Marshall Islands |
| Coordinates: | 11.4° North, 162.4° East (view map) |
| Paleocoordinates: | |
| 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 Miocene | ||
| Age range of interval: | 23.04 - 15.98 m.y. ago |
Stratigraphy
| Local section: | E-1 | Local bed: | 1850 ft | ||
| Local order: | top to bottom | ||||
| Regional section: | Eniwetok Atol | Regional bed: | 1850 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,brown,gray poorly lithified "limestone" |
| Includes fossils? | Y |
| Lithology description: SPECIFIC LITHOLOGY: Limestone, gray to brown, porous, made up of well-preserved corals and shells. 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: | 43319 | ||
| Authorizer: | A. Hendy | Enterer: | A. Hendy |
| Modifier: | A. Hendy | Research group: | marine invertebrate |
| Created: | 2004-08-11 14:57:10 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | authorizer only | Released: | 2005-08-11 14:57:10 |
| 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] | |
| 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] |