USGS 6030, Camp Cotton (Miocene of Panama)

Also known as Woodring Loc. 143; WG143

Where: Colon, Panama (9.3° N, 79.9° W: paleocoordinates 9.0° N, 78.5° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: middle Gatun Member (Gatun Formation), Tortonian (11.6 - 7.2 Ma)

• LITHOSTRATIGRAPHY: From middle part of the Gatun Formation. The Gatun Formation is sibdivided into three faunal zones (proposed by Thomson and Keen, 1946): lower, middle, and upper. AGE: Late Miocene, on the basis of microfossil biostratigraphy (see Collins and Coates, 1999), refined by enterer to Tortonian based on more recent dating (Hendy, 2012). Sr dating for nearby sections indicates an age of approximately 10.4 Ma (Hendy, unpublished data).

• bed-level stratigraphic resolution

Environment/lithology: marine; poorly lithified, fine-grained, silty sandstone

• No specific environmental data presented.
• LITHOLOGY: Soft, silty fine-grained sandstone.

Size class: macrofossils

Preservation: original aragonite

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

Collection methods: surface (float), surface (in situ),

• COLLECTOR: D.F. MacDonald and T.W. Vaughan, 1911. REPOSITORY: USNM.

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 145567: authorized by Austin Hendy, entered by Austin Hendy on 06.06.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for gastropods and bivalves. NOMENCLATURE: Authoritative publications, with modern nomenclature, and species-resolution identifications.
 Lamniformes - Lamnidae
Carcharodon cf. auriculatus4 Blainville 1818 white shark
 Clypeasteroida - Mellitidae
Encope megatrema1 Jackson 1917 sand dollar
 Arcida - Arcidae
 Pectinida - Pectinoidae
"Aequipecten plurinominis" = Lindapecten plurinominis7, "Flabellipecten gatunensis" = Leopecten gatunensis7
"Aequipecten plurinominis" = Lindapecten plurinominis7 Pilsbry and Johnson 1917 scallop
"Flabellipecten gatunensis" = Leopecten gatunensis7 Toula 1909 scallop
SUBSPECIES: Flabellipecten gatunensis gatunensis
 Ostreida - Gryphaeidae
Hyotissa haitensis7 Sowerby 1850 oyster
 Lucinida - Lucinidae
Divaricella cf. comis7 Olsson 1964 clam
 Cardiida - Semelidae
Semele laevis7 Sowerby 1833 clam
SUBSPECIES: Semele laevis costaricensis
 Cardiida - Cardiidae
Trachycardium (Dallocardia) dominicense7 Gabb 1873 cockle
SUBSPECIES: Trachycardium (Dallocardia) dominicense dominicense
 Cardiida - Ungulinidae
 Cardiida - Mactridae
Mactrellona alata7 Spengler 1802 clam
 Cardiida - Veneridae
"Macrocallista (Paradione) maculata" = Macrocallista maculata7 Linnaeus 1758 venus clam
Dosinia (Dosinia) delicatissima7 Brown and Pilsbry 1913 venus clam
Chione (Chionopsis) tegulum7 Brown and Pilsbry 1911 venus clam
Lamelliconcha cora7 Brown and Pilsbry 1911 venus clam
"Agriopoma (Pitarella) gatunensis" = Callocardia (Agriopoma) gatunensis7 Dall 1903 venus clam
Clementia (Clementia) dariena7 Conrad 1855 venus clam
SUBSPECIES: Clementia (Clementia) dariena dariena
Cyclinella cyclica7 Guppy 1866 venus clam
 Sorbeoconcha - Tonnidae
Malea camura5 Guppy 1866 tun shell
 Balanomorpha - Balanidae
"Balanus concavus" = Concavus concavus2
"Balanus concavus" = Concavus concavus2 Bronn 1831 barnacle
SUBSPECIES: Balanus concavus rariseptatus; one cluster
 Decapoda - Callianassidae
"Callianassa vaughani n. sp." = Neocallichirus scotti3
"Callianassa vaughani n. sp." = Neocallichirus scotti3 Brown and Pilsbry 1913 decapod
 Decapoda - Portunidae
"Gatunia proavita" = Necronectes proavita3
"Gatunia proavita" = Necronectes proavita3 Rathbun 1918 swimming crab
 Miliolida - Hauerinidae