USGS 18837, Barro Colorado Island: Chattian, Panama

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Gastropoda - Opisthobranchiata - Cylichnidae
Acteocina cf. bullata (Kiener 1834)
Woodring 1964 a category
Woodring 1964 c category
Gastropoda - Opisthobranchiata - Haminoeidae
Woodring 1964 r category
Gastropoda - Campanilidae
Woodring 1959 a category
Gastropoda - Naticidae
Polinices sp. Monfort 1810
Sinum sp. Röding 1798
Gastropoda - Neogastropoda - Mitridae
Mitra (Tiara) sp. (Swainson 1831)
Woodring 1964 r category
Gastropoda - Neogastropoda - Columbellidae
Woodring 1964 r category
Gastropoda - Neogastropoda - Buccinidae
? Antillophos sp. Woodring 1928
Woodring 1964 r category
Gastropoda - Neogastropoda - Muricidae
Muricidae indet. Rafinesque 1815
Woodring 1959 r category
Gastropoda - Neogastropoda - Marginellidae
Woodring 1964 r category
Gastropoda - Neogastropoda - Terebridae
Woodring 1964 r category
n. sp.
Gastropoda - Neogastropoda - Drilliidae
Woodring 1964 r category
Gastropoda - Neogastropoda - Conidae
Conus cf. sulculus (Dall 1896)
Woodring 1964 r category
Woodring 1964 c category
Gastropoda - Neogastropoda - Olividae
Olividae indet. Latreille 1825
Woodring 1964 f category
Gastropoda - Ficidae
Woodring 1959 r category
Gastropoda - Thersiteidae
Orthaulax cf. pugnax (Heilprin 1887)
Woodring 1959 r category
Gastropoda - Ampullinidae
Gastropoda - Turritellidae
Wooding (1959) repeats list, but does not include T. altilira, but rather T. listrota
Wooding (1959) repeats list, but does not include T. venezuela, but rather T. listrota
Gastropoda - Heterostropha - Acteonidae
Woodring 1964 r category
Gastropoda - Solariellidae
Bivalvia - Nuculanida - Nuculanidae
Woodring 1973 c category
Bivalvia - Lucinida - Lucinidae
Miltha sp. (Adams and Adams 1857)
Woodring 1982 r category
Woodring 1982 r category
Bivalvia - Cardiida - Solecurtidae
Woodring 1982 r category
Bivalvia - Cardiida - Semelidae
Semele cf. venusta (Reeve 1853)
Woodring 1982 r category
Bivalvia - Cardiida - Psammobiidae
Woodring 1982 c category
Subspecies: Gari (Gobraeus) listrota listrota
Bivalvia - Cardiida - Tellinidae
Tellina sp. Linnaeus 1758
Woodring 1982 r category
Woodring 1982 f category
Bivalvia - Cardiida - Cardiidae
Woodring 1982 a category
Bivalvia - Cardiida - Ungulinidae
Woodring 1982 c category
Bivalvia - Cardiida - Veneridae
Woodring 1982 r category
Woodring 1982 r category
Woodring 1982 c category
Woodring 1982 c category
Bivalvia - Pholadida - Corbulidae
Woodring 1982 f category
Bivalvia - Thraciida - Thraciidae
Woodring 1982 r category
Bivalvia - Arcida - Arcidae
Woodring 1973 c category
Bivalvia - Pectinida - Pectinidae
Woodring 1982 f category
Bivalvia - Pectinida - Anomiidae
Anomia cf. peruviana d'Orbigny 1846
Woodring 1982 r category
Subspecies: Anomia peruviana gabbi
Cephalopoda - Nautilida - Aturiidae
Aturia sp. Bronn 1838
Woodring 1982 r category
Scaphopoda - Gadilida - Gadilidae
Cadulus sp. Philippi 1844
Woodring 1973 r category
Scaphopoda - Dentaliida - Dentaliidae
Woodring 1973 r 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: Chattian
Age range of interval: 27.3 - 23.04 m.y. ago
Stratigraphy
Formation:Bohio
Stratigraphic resolution:bed
Stratigraphy comments: 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:medium lithified calcareous sandstone
Includes fossils?Y
Lithology description: Listed as "calcareous, medium-grained subgreywacke"
Environment:shoreface
Geology comments: No paleoenvironmental data reported, but given that these collections originate from marine tongues/wedges, they are likely to be shallow water. Other localities contain mixed marine, brackish, and freshwater taxa.
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 Woodring (1954). Material is also held (but not specified for any specific collection) at Stanford University, Acad. Nat. Sci. Phil., Corenell University, PRI, U. Cal. and Cal. Acad. Sci.
Taxonomic list comments:Exhaustive for gastropoda.
Metadata
Also known as:Location 42d; field #207
Database number:42558
Authorizer:A. Hendy Enterer:A. Hendy
Modifier:M. Clapham Research group:marine invertebrate
Created:2004-08-02 08:13:55 Last modified:2025-02-22 15:12:02
Access level:the public Released:2004-08-02 08:13:55
Creative Commons license:CC0
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:

11372 W. P. Woodring. 1959. Geology and paleontology of Canal Zone and adjoining parts of Panama: Description of Tertiary mollusks (gastropods: Vermetidae to Thaididae). United States Geological Survey Professional Paper 306(B):147-239 [A. Miller/A. Hendy/A. Hendy]
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]
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]