Location 57a, Gatun Lake area (Caimito Formation) - Woodring (1957): Late/Upper Oligocene, Panama

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia - Pectinida - Pectinidae
Flabellipecten gatunensis (Toula 1909)
Woodring 1982 r category
recombined as Leopecten gatunensis
Subspecies: Flabellipecten gatunensis protistus
Bivalvia - Cardiida - Veneridae
Chione sp. von Mühlfield 1811
Woodring 1982 r category
Bivalvia - Cardiida - Ungulinidae
Diplodonta (Diplodonta) cf. alta (Dall 1890)
Woodring 1982 r category
Bivalvia - Pholadida - Teredinidae
Kuphus "incrassatus" Gabb 1873
Woodring 1982 r category
Gastropoda - Neotaenioglossa - Calyptraeidae
Trochita cf. trochiformis (Gmelin 1791)
recombined as Calyptraea (Trochita) trochiformis
Gastropoda - Ampullinidae
Globularia (Globularia) aff. fischeri (Dall 1892)
Gastropoda - Neogastropoda - Olividae
Olividae indet. Latreille 1825
Woodring 1964 r category
see common names

Geography
Country:Panama
Coordinates: 9.2° North, 79.8° 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:28.40000 - 23.03000 m.y. ago
Stratigraphy
Formation:Caimito Member:Middle
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:coarse,shelly/skeletal poorly lithified sandy marl
Includes fossils?Y
Lithology description: Foraminiferal coarse sandy marl
Environment:carbonate indet.
Geology comments: No paleoenvironmentald data reported.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection methods:selective quarrying,field collection
Reason for describing collection:taxonomic analysis
Museum repositories:USNM
Collection method comments: Collected by MacDonald and Vaughan (1911). 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. Includes corals.
Metadata
Also known as:USGS 5091
Database number:42578
Authorizer:A. Hendy Enterer:A. Hendy
Modifier:A. Hendy Research group:marine invertebrate
Created:2004-08-02 12:29:10 Last modified:2013-11-25 13:37:23
Access level:the public Released:2004-08-02 12:29:10
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]
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]