USGS 6012c, Canal Zone (Miocene of Panama)

Also known as Woodring Loc. 106

Where: Panama (9.1° N, 79.7° W: paleocoordinates 8.4° N, 77.5° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Culebra Formation, Burdigalian (20.4 - 16.0 Ma)

• LITHOSTRATIGRAPHY: From the Culebra Formation, which unconformably overlies the Las Cascadas agglomerate; emended by Kirby et al. (2009) to the upper member of the Culebra Formation. AGE: Early Miocene in text; direct date extrapolated from Kirby et al. (1999), =Burdigalian. STRATIGRAPHIC POSITION: From unknown position within member.

• bed-level stratigraphic resolution

Environment/lithology: marine; poorly lithified, fine-grained shale and carbonaceous mudstone

• No paleoenvironmental data reported.
• 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.

Size class: macrofossils

Collected by D.F. MacDonald, T.W. Vaughan in 1911; reposited in the USNM

Collection methods: quarrying,

• 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).

Primary reference: 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]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 42611: authorized by Austin Hendy, entered by Austin Hendy on 03.08.2004, edited by Matthew Clapham

Creative Commons license: CC BY (attribution)

Taxonomic list

• Exhaustive for gastropoda.
Gastropoda
 Neotaenioglossa - Calyptraeidae
Crucibulum sp. Schumacher 1817 slipper shell
 Cerithioidea - Potamididae
Potamides suprasulcatus2 Gabb 1873 horn snail
 Sorbeoconcha - Naticidae
? Polinices sp. Monfort 1810 moon snail
? Neverita sp. Risso 1826 moon snail
 Neogastropoda - Buccinidae
"? Antillophos (? Antillophos) candei" = Antillophos candeanus3
"? Antillophos (? Antillophos) candei" = Antillophos candeanus3 d'Orbigny 1842 true whelk
Subspecies: ?Antillophos ?(Antillophos) candei gatunensis
 Sorbeoconcha - Strombidae
Strombus sp.2 Linnaeus 1758 conch
Bivalvia
 Cardiida - Veneridae
"Macrocallista (Paradione) maculata" = Macrocallista maculata5, Lirophora (Lirophora) cf. quirosensis5
"Macrocallista (Paradione) maculata" = Macrocallista maculata5 Linnaeus 1758 venus clam
Lirophora (Lirophora) cf. quirosensis5 Hodson 1927 venus clam
 Cardiida - Cardiidae
 Lucinida - Lucinidae
 Carditida - Carditidae
Venericardia sp.5 Lamarck 1801 clam
 Mytilida - Mytilidae
Mytilus canoasensis4 Olsson 1931 mussel
Subspecies: Mytilus canoasensis vidali
 Ostreida - Ostreidae
"Crassostrea cahobasensis" = Striostrea cahobasensis5
"Crassostrea cahobasensis" = Striostrea cahobasensis5 Pilsbry and Brown 1910 oyster
 Arcida - Arcidae
Anadara (Rasia) dariensis4 Brown and Pilsbry 1911 ark
Subspecies: Anadara (Rasia) dariensis progonica
Malacostraca
 Decapoda - Euryplacidae
Euryplax culebrensis n. sp.1 Rathbun 1918 crab
 Decapoda - Portunidae
Callinectes sp.1 Stimpson 1860 swimming crab
 Decapoda - Callianassidae
Callianassa sp.1 Leach 1814 decapod