Location 54g, Gatun Lake area (Caimito Formation) - Woodring (1957): Late/Upper Oligocene, Panama
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Scaphopoda
- Dentaliida
- Dentaliidae
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Dentalium (Fissidentalium) uscarianum
Olsson 1922
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Woodring 1973 | f category | |||||
| recombined as Fissidentalium uscarianum | |||||||
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Gastropoda
- Neogastropoda
- Buccinidae
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? Antillophos (? Antillophos) sp.
Woodring 1928
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Woodring 1964 | r category | |||||
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Gastropoda
- Neogastropoda
- Cochlespiridae
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? Cochlespira sp.
Conrad 1865
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Woodring 1970 | r category | |||||
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Gastropoda
- Neogastropoda
- Turridae
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"Gemmula" sp.
(Weinkauff 1875)
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Woodring 1970 | r category | |||||
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Bivalvia
- Lucinida
- Lucinidae
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Lucinidae indet.
Fleming 1828
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Woodring 1982 | r category | |||||
| see common names | |||||||
Geography
| Country: | Panama |
| Coordinates: | 9.2° North, 79.9° West (view map) |
| Paleocoordinates: | 7.7° North, 77.5° West |
| Basis of coordinate: | estimated from map |
| Geographic resolution: | outcrop |
Time
| Period: | Paleogene | Epoch: | Oligocene |
| Stage: | Chattian | 10 m.y. bin: | Cenozoic 4 |
| Key time interval: | Late/Upper Oligocene | ||
| Age range of interval: | 27.82000 - 23.03000 m.y. ago |
Stratigraphy
| Formation: | Caimito | Member: | Middle | ||
| Local section: | Barro Colorado Island | ||||
| Regional section: | Gatun Lake | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: From middle member. Three members of the Caimito Formation are recognized in the Gatun Lake area: lower, middle, and upper. The lower member is predominantly conglomerate and tuffaceous sandstone; the middle member consists of tuffaceous sandstone; the upper member comprises tuff and tuffaceous siltstone. The thickness of the Caimito Formation in the Gatun Lake area is around 300 m or more. Larger foraminifera support a late Oligocene age; corals favor a late Oligocene age, although early Miocene is unlikely; molluscs also confirm an Oligocene age. | |||||
Lithology and environment
| Primary lithology: | medium poorly lithified sandstone |
| Includes fossils? | Y |
| Lithology description: Soft medium-grained sandstone. | |
| Environment: | coastal indet. |
| Geology comments: No paleoenvironmentald data reported. | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils,microfossils |
Collection methods and comments
| Collection methods: | selective quarrying,field collection |
| Reason for describing collection: | taxonomic analysis |
| Museum repositories: | USNM |
| Collection method comments: Collected by Woodring (1954). Material is also held (but not specified for any specific collection) at Stanford University, Acad. Nat. Sci. Phil., Cornell University, PRI, U. Cal. and Cal. Acad. Sci. | |
| Taxonomic list comments:Exhaustive for gastropoda. | |
Metadata
| Also known as: | USGS 18840; field #210 | ||
| Database number: | 42576 | ||
| Authorizer: | A. Hendy | Enterer: | A. Hendy |
| Modifier: | A. Hendy | Research group: | marine invertebrate |
| Created: | 2004-08-02 12:28:52 | Last modified: | 2013-11-25 13:37:23 |
| Access level: | the public | Released: | 2004-08-02 12:28:52 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 11306. | W. P. Woodring. 1957. Geology and Paleontology of Canal Zone and adjoining parts of Panama. United States Geological Survey Professional Paper 306(A) [A. Miller/A. Hendy/A. Hendy] |
Secondary references:
| 13232 | W. P. Woodring. 1964. Geology and paleontology of canal zone and adjoing parts of Panama: Description of Tertiary mollusks (gastropods: Columbellidae to Volutidae). United States Geological Survey Professional Paper 306(C):241-297 [A. Miller/A. Hendy/A. Hendy] | |
| 13236 | W. P. Woodring. 1970. Geology and paleontology of canal zone and adjoing parts of Panama: Description of Tertiary mollusks (gastropods: Eulimidae, Marginellidae to Helminthoglyptidae). United States Geological Survey Professional Paper 306(D):299-452 [A. Miller/A. Hendy/A. Hendy] | |
| 13235 | W. P. Woodring. 1973. Geology and paleontology of canal zone and adjoing parts of Panama: Description of Tertiary mollusks (additions to gastropods, scaphopods, pelecypods: Nuculidae to Malleidae). United States Geological Survey Professional Paper 306(E):453-539 [A. Miller/A. Hendy/A. Hendy] | |
| 13359 | W. P. Woodring. 1982. Geology and paleontology of canal zone and adjoing parts of Panama: Description of Tertiary mollusks (Pelecypods: Propeamussiidae to Cuspidariidae). United States Geological Survey Professional Paper 306(F) [A. Miller/A. Hendy/A. Hendy] |