USGS 6020a, Canal Zone: Aquitanian, Panama
collected by D.F. MacDonald, T.W. Vaughan 1911

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia - Mytilida - Mytilidae
Mytilus canoasensis Olsson 1931
Woodring 1973 r category
Subspecies: Mytilus canoasensis vidali
Bivalvia - Pholadida - Corbulidae
Bothrocorbula (Hexacorbula) cruziana (Olsson 1932)
Woodring 1982 r category
Caryocorbula sp. (Gardner 1926)
Woodring 1982 r category
Bivalvia - Cardiida - Veneridae
Lamelliconcha cf. aequicincta (Spieker 1922)
Woodring 1982 r category
Chione (Chionopsis) propinqua (Spieker 1922)
Woodring 1982 r category
Bivalvia - Cardiida - Tellinidae
Strigilla sp. Turton 1822
Woodring 1982 r category
Tellina (Eurytellina) vetula Brown and Pilsbry 1913
Woodring 1982 f category
Psammacoma diphas Woodring 1982
Woodring 1982 r category
Bivalvia - Cardiida - Psammobiidae
Gari (Gobraeus) sp. (Brown 1844)
Woodring 1982 r category
Bivalvia - Cardiida - Donacidae
Donax gonoides
Woodring 1982 c category
Bivalvia - Nuculanida - Nuculanidae
Saccella sp. Woodring 1925
Woodring 1973 r category
elongate form
Gastropoda - Naticidae
? Polinices sp. Monfort 1810
f category
Gastropoda - Neogastropoda - Nassariidae
Nassarius (? Uzita) praeambiguus (Brown and Pilsbry 1913)
Woodring 1964 c category
Gastropoda - Neogastropoda - Olividae
Oliva (Oliva) sp. Bruguière 1789
Woodring 1970 c category
? Olivella sp. Swainson 1831
Woodring 1964 c category
Gastropoda - Cerithiidae
Bittium scotti Brown and Pilsbry 1913
Woodring 1970 c category
Gastropoda - Neotaenioglossa - Calyptraeidae
Calyptraea cf. centralis (Conrad 1841)
r category
Crepidula sp. Lamarck 1799
r category
Gastropoda - Heterostropha - Architectonicidae
Architectonica (Architectonica) scotti
Woodring 1970 r category
Thecostraca - Balanomorpha - Balanidae
Balanus (Hesperibalanus) sp. (Pilsbry 1916)
Pilsbry 1918 1 specimen
Malacostraca - Decapoda - Calappidae
Calappella quadrispina n. gen., n. sp. Rathbun 1918
Rathbun 1918
Malacostraca - Decapoda - Hexapodidae
Thaumastoplax prima n. sp. Rathbun 1918
Rathbun 1918
Malacostraca - Decapoda - Portunidae
Callinectes reticulatus n. sp. Rathbun 1918
Rathbun 1918
Malacostraca - Decapoda - Goniochelidae
? Goniochele armata n. sp. Rathbun 1918
Rathbun 1918
Malacostraca - Decapoda - Axiidae
Axius reticulatus n. sp. Rathbun 1918
Rathbun 1918
Malacostraca - Decapoda - Callianassidae
Callianassa ovalis n. sp. Rathbun 1918
Rathbun 1918
Callianassa abbreviata n. sp. Rathbun 1918
Rathbun 1918
Callianassa quadrata n. sp. Rathbun 1918
Rathbun 1918
Callianassa spinulosa n. sp. Rathbun 1918
Rathbun 1918
Callianassa elongata n. sp. Rathbun 1918
Rathbun 1918
Callianassa magna n. sp. Rathbun 1918
Rathbun 1918
Malacostraca - Decapoda - Callichiridae
Callianassa crassimana n. sp. Rathbun 1918
Rathbun 1918
see common names

Geography
Country:Panama
Coordinates: 9.8° North, 79.7° West (view map)
Paleocoordinates:8.8° North, 77.3° West
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Period: Neogene Epoch: Miocene
Stage: Aquitanian 10 m.y. bin: Cenozoic 5
Key time interval: Aquitanian
Age range of interval: 23.03 - 20.44 m.y. ago
Age estimate: 21.6 Ma (Sr isotope)
Stratigraphy
Formation:Culebra
Stratigraphic resolution:bed
Stratigraphy comments: LITHOSTRATIGRAPHY: From the Culebra Formation, which unconformably overlies the Las Cascadas agglomerate; reassigned to La Boca Fm in subsequent publications of Woodring (e.g., 1973, 1982), but further emended by Kirby et al. (2009) to the lower member of the Culebra Formation. AGE: Early Miocene in text; direct date extrapolated from Kirby et al. (1999), =Aquitanian.
Lithology and environment
Primary lithology:planar lamination,fine poorly lithified "shale"
Secondary lithology: carbonaceous mudstone
Includes fossils?Y
Includes fossils?Y
Lithology description: Collection assumed to be from lower part of formation. The lower part of the formation comprises: dark-colored, thin-bedded or laminated, fine-grained rocks; carbonaceous or lignitic shale, carbonaceous silty mudstone, tuffaceous siltstone. The upper part comprises: calcareous and sandy strata, and ranges from tuffaceous amd pebbly calcareous sandstone to sandy limestone.
Environment:marine indet.
Geology comments: No paleoenvironmental 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
Collectors:D.F. MacDonald, T.W. Vaughan Collection dates:1911
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., Corenell University, PRI, U. Cal. and Cal. Acad. Sci. Locality now unaccessible (submerged).
Taxonomic list comments:Exhaustive for gastropoda.
Metadata
Also known as:Woodring Loc. 100
Database number:42624
Authorizer:A. Hendy, M. Clapham Enterer:A. Hendy, M. Clapham
Modifier:M. Clapham Research group:marine invertebrate
Created:2004-08-03 11:00:21 Last modified:2022-07-20 12:18:14
Access level:group members Released:2005-08-03 11:00:21
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:

43691 M. X. Kirby, D. S. Jones, and B. J. MacFadden. 2009. Lower Miocene stratigraphy along the Panama Canal and its bearing on the Central American Peninula. PLoS One 3(7):1-14 [A. Hendy/A. Hendy]
47072 H. A. Pilsbry. 1918. Cirripedia from the Panama Canal Zone. United States National Museum Bulletin 103:185-189 [A. Hendy/A. Hendy]
43320decapod M. J. Rathbun. 1918. Decapod crustaceans from the Panama region. Bulletin of the United States National Museum 103:123-184 [C. Schweitzer/S. Yost/M. Clapham]
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]