Location 40a, Gatun Lake area (Bohio Formation) - Woodring (1957): Late/Upper Eocene, Panama

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Samanoetia samanensis
Woodring 1973 f category
Gastropoda - Phasianellidae
Tricolia calypta Woodring 1957
Gastropoda - Epitoniidae
? Scalina sp. Conrad 1865
Woodring 1959 r category
Gastropoda - Neotaenioglossa - Calyptraeidae
Calyptraea sp. Lamarck 1799
Gastropoda - Turritellidae
Turritella adela
Turritella cf. caleta Olsson 1931
Gastropoda - Ampullinidae
Globularia (Ampulella) sp. (Cox 1931)
synonym of Ampullina
Gastropoda - Neogastropoda - Buccinidae
Buccinidae indet. Rafinesque 1815
Woodring 1964 r category
Gastropoda - Neogastropoda - Fasciolariidae
Glyptostyla panamensis Dall 1892
Woodring 1964 r category
Gastropoda - Neogastropoda - Columbellidae
Mitrella sp. Risso 1826
Woodring 1964 r category
Gastropoda - Neogastropoda - Turridae
Turridae indet. Swainson 1840
Woodring 1964 r category
Gastropoda - Neogastropoda - Harpidae
Morum ("Oniscidia") cf. antiquum
Woodring 1959 r category
original and current combination Oniscidia
Gastropoda - Ficidae
Ficus cf. mississippiensis Conrad 1848
Woodring 1959 r category
Gastropoda - Naticidae
? Polinices sp. Monfort 1810
Neverita (Glossaulax) bolivarensis Clark and Durham 1946
Subspecies: Neverita (Glossaulax) bolivarensis tapina
Sinum sp. Röding 1798
? Pachycrommium proinum Woodring 1957
recombined as Euspirocrommium proinum
Gastropoda - Heterostropha - Architectonicidae
Architectonica sp. Röding 1798
Woodring 1959 r category
Architectonica (Stellaxis) aff. alveata (Conrad 1833)
Woodring 1959 r category
recombined as Architectonica (Stellaxis) alveatum
Architectonica cf. fungina Conrad 1833
Woodring 1959 r category
Gastropoda - Opisthobranchia - Cylichnidae
Scaphander (Scaphander) cf. jacksonensis Harris and Palmer 1947
Woodring 1964 f category
Bivalvia - Pholadida - Corbulidae
Caryocorbula phruda Woodring 1982
Woodring 1982 f category
Bivalvia - Cardiida - Veneridae
Costacallista gabrielensis (Clark and Durham 1946)
Woodring 1982 r category
Pitar (? Pitar) yasila (Olsson 1930)
Woodring 1982 r category
Lamelliconcha hillii (Dall 1895)
Woodring 1982 r category
Bivalvia - Cardiida - Mactridae
? Mulinia sp. Gray 1837
Woodring 1982 r category
Ovamactra cyma Woodring 1982
Woodring 1982 f category
Eopapyrina darienensis (Dall 1898)
Woodring 1982 c category
Bivalvia - Cardiida - Cardiidae
? Schedocardia gatunensis (Dall 1900)
Woodring 1982 c category
Bivalvia - Cardiida - Tellinidae
Strigilla (Strigilla) protera Woodring 1982
Woodring 1982 r category
Tellina (Eurytellina) alincia Woodring 1982
Woodring 1982 r category
Bivalvia - Cardiida - Psammobiidae
Gari (Gobraeus) listrota Woodring 1982
Woodring 1982 f category
Subspecies: Gari (Gobraeus) listrota listrota
Scaphopoda - Dentaliida - Dentaliidae
Dentalium sp. Linnaeus 1758
Woodring 1973 f category
unclassified
Niso (Niso) umbilicata (Lea 1833)
Woodring 1964 r category
original and current combination Pasithea umbilicata
see common names

Geography
Country:Panama
Coordinates: 9.2° North, 79.9° West (view map)
Paleocoordinates:6.8° North, 77.5° West
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Period:Paleogene Epoch:Eocene
Stage:Priabonian 10 m.y. bin:Cenozoic 3
Key time interval:Late/Upper Eocene
Age range of interval:37.20000 - 33.90000 m.y. ago
Stratigraphy
Formation:Bohio
Stratigraphic resolution:bed
Stratigraphy comments: Marine strata of early Tertiary age in the Gatun Lake area are tentatively designated the marine member of the Bohio Formation. They are thought to represent a marine tongue in the lower part of what is essentially a non-marine formation. The age is disputed. Large foraminifera point to a late Eocene age and are unlikely to reworked, but large foraminifera of Oligocene age were undescribed from the Carribean at the time of writing. Mollusa have regional Eocene affinities, although others have later affinities. The most amrked faunal similariies are with the late Eocene of Columbia and the late Eocene-early Oligocene of Peru. A late Eocene-early Oligocene age was assigned to these collections. A literature search has failed to resolve this age any finer for this "tongue".
Lithology and environment
Primary lithology:concretionary,tuffaceous silty,calcareous sandstone
Secondary lithology:pebbly conglomerate
Includes fossils?Y
Includes fossils?Y
Lithology description: Strata consist of dark tuffaceous silty sandstone, containing practically black calcareous concretions, and small-pebble conglomerate. Fossils were found in the calcareous concretions and also in the sandstone. A thickness of 95 feet (29 m) was reported for this section.
Environment:coastal indet.
Geology comments: A marine tongue within a overall non-marine lithostratigraphic unit.
Taphonomy
Modes of preservation:body,concretion
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: Location now unaccessible (underwater). 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 gastropods.
Metadata
Also known as:Lot 1 (Hill, 1895); USGS 2683; field #18
Database number:42534
Authorizer:A. Hendy Enterer:A. Hendy
Modifier:A. Hendy Research group:marine invertebrate
Created:2004-08-01 16:35:45 Last modified:2013-11-25 13:37:23
Access level:the public Released:2004-08-01 16:35:45
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:

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]