Location 12, Madden Basin (Gatuncillo Formation) - Woodring (1957): Late Eocene, Panama

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia - Ostreida - Malleidae
Woodring 1973 r category
Bivalvia - Arcida - Glycymerididae
Woodring 1973 r category
Bivalvia - Lucinida - Lucinidae
Fimbria cf. vernoni Richards 1953
Woodring 1982 r category
? Pseudomiltha sp. Fischer 1887
Woodring 1982 f category
Bivalvia - Cardiida - Cardiidae
? Trachycardium sp. Mörch 1853
Woodring 1982 c category
Woodring 1982 c category
Bivalvia - Cardiida - Tellinidae
Tellina sp. Linnaeus 1758
Woodring 1982 r category
Bivalvia - Cardiida - Veneridae
Woodring 1982 f category
Bivalvia - Carditida - Carditidae
Venericardia sp. Lamarck 1801
Woodring 1982 f category
Gastropoda - Campanilidae
? Campanile sp. Fischer 1884
Woodring 1959 r category
Gastropoda - Thersiteidae
Woodring 1959
Gastropoda - Strombidae
Woodring 1959 c category
Woodring 1959 a category
Gastropoda - Cypraeidae
Woodring 1959 f category
Gastropoda - Pediculariidae
Woodring 1959 r category
Gastropoda - Xenophoridae
Xenophora sp. Fischer von Waldheim 1807
Gastropoda - Naticidae
? Neverita sp. Risso 1826
? Polinices sp. Monfort 1810
? Amaurellina sp. Fischer 1885
Gastropoda - Neotaenioglossa - Calyptraeidae
Calyptraea cf. aperta (Solander 1766)
Gastropoda - Turritellidae
Turritella sp. Lamarck 1799
Anthozoa - Scleractinia - Poritidae
Anthozoa - Scleractinia - Merulinidae
Anthozoa - Scleractinia - Mussidae
Colpophyllia sp. Milne-Edwards and Haime 1848
see common names

Geography
Country:Panama
Coordinates: 9.2° North, 79.5° West (view map)
Paleocoordinates:
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 Eocene
Age range of interval: 37.71 - 33.9 m.y. ago
Stratigraphy
Formation:Gatuncillo
Stratigraphic resolution:bed
Stratigraphy comments: Marly limestone In Madden basin, the Gatuncillo Formation is overlain by Caimato Formation and overlies Cretaceous basement. The thickness of the foramtion is difficult to estimate, but not more than 300 m. Limestones are extensive. Algal or algal-foraminiferal limestones dominate the upper part of the formation. Other facies include echinoid bearing limestones, soft and coralliferous limestones. Siliciclastic facies dominate the formartion and include fine-grained and sandy strata.
Lithology and environment
Primary lithology: lithified "limestone"
Includes fossils?Y
Lithology description: Marl limestone specified. Algal or algal-foraminiferal limestones dominate the upper part of the formation. Other facies include echinoid bearing limestones, soft and coralliferous limestones.
Environment:carbonate indet.
Geology comments: Carbonate facies, including algal and coral-rich limestones. No further paleoenvironmental data.
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 Thomson (1948) and Thomson and Woodring (1949). 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 and contains corals. Corals identified by J.W. Wells.
Metadata
Also known as:USGS 1762, Field #107
Database number:42489
Authorizer:A. Hendy Enterer:A. Hendy
Modifier:A. Hendy Research group:marine invertebrate
Created:2004-07-30 12:25:57 Last modified:2025-02-22 15:12:02
Access level:the public Released:2004-07-30 12:25:57
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]
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]