Location 42i, Gatun Lake area [Bohio Fm]: Late Oligocene, Panama
collected by Woodring 1954

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia - Nuculanida - Sareptidae
Woodring 1973 R category
Bivalvia - Cardiida - Solecurtidae
R category
Bivalvia - Cardiida - Tellinidae
R category
Bivalvia - Cardiida - Cardiidae
R category
Bivalvia - Cardiida - Veneridae
F category
C category
Bivalvia - Cardiida - Anatinellidae
Raeta cf. gardnerae (Spieker 1922)
F category
see common names

Geography
Country:Panama
Coordinates: 9.2° North, 79.9° West (view map)
Paleocoordinates:
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 Oligocene
Age range of interval: 27.3 - 23.04 m.y. ago
Stratigraphy
Formation:Bohio
Stratigraphic resolution:bed
Stratigraphy comments: The Bohio Formation is characterized by the presence of poorly sorted debris, mostly basaltic: very coarse debris in the form of boulders and cobbles, and finer debris formings beds of sandstone, and the matrix of conglomerate. The facies are non-mrine, but marine fossils are found in thin units in the upper part of the formation, in algal limestone and in both poorly sorted and fairly well sorted subgraywacke. The Bohio Formation overlies the Gatuncillo Formation conformably in most areas, although may lap onto the Gauncillo Formation or basement. The thickness of the formation is about 75 metres to as much as 450 metres. Smaller foraminifera from the basal part of the formation yielded a early Oligocene age. The upper part of the formation, from which the collections are derived yields larger foraminifera of late Oligocene age.
Lithology and environment
Primary lithology: lithified wackestone
Includes fossils?Y
Lithology description: Listed as "poorly sorted subgraywacke". Typically, algal limestone and in both poorly sorted and fairly well sorted subgraywacke.
Environment:coastal indet.
Geology comments: No paleoenvironmentald data reported, but given that these collections originate from marine tongues/wedges, they are likely to be shallow water.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection methods:surface (in situ),field collection
Reason for describing collection:taxonomic analysis
Museum repositories:USNM
Collectors:Woodring Collection dates:1954
Collection method comments: COLLECTOR: Woodring (1954). REPOSITORY: USNM.
Taxonomic list comments:COVERAGE: Exhaustive for gastropods and bivalves. NOMENCLATURE: Authoritative publication, with relative modern nomenclature, and species-resolution identifications.
Metadata
Also known as:USGS 18845; field #215a
Database number:92982
Authorizer:A. Hendy Enterer:A. Hendy
Modifier:A. Hendy Research group:marine invertebrate
Created:2009-12-20 17:34:37 Last modified:2025-02-22 15:12:02
Access level:the public Released:2009-12-20 17:34:37
Creative Commons license:CC0
Reference information

Primary reference:
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]

Secondary references:

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]