Woodring Loc. 144c - eastern area [middle Gatun Fm] (Miocene of Panama)

Also known as USGS 6235

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

• coordinate stated in text

• outcrop-level geographic resolution

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

• 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 Sr dating for nearby sections indicates an age of approximately 10.1 Ma (Hendy, unpublished data).

• bed-level stratigraphic resolution

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

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

Size class: macrofossils

Reposited in the USNM

Collection methods: surface (in situ),

• COLLECTOR: Not stated in text. REPOSITORY: USNM.

Primary reference: 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]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 93169: authorized by Austin Hendy, entered by Austin Hendy on 06.01.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for gastropods and bivalves. NOMENCLATURE: Authoritative publications, with modern nomenclature, and species-resolution identifications.
Bivalvia
 Arcida - Arcidae
Anadara (Tosarca) sp. Noda 1965 ark
 Pholadida - Corbulidae
Caryocorbula prenasuta Olsson 1964 clam
 Cardiida - Tellinidae
Psammacoma gatunensis Toula 1909 tellin clam
Tellina (Eurytellina) angulosa Gmelin 1791 tellin clam
SUBSPECIES: Tellina (Eurytellina) angulosa costaricana
"Tellina (Eurytellina) punicea" = Eurytellina punicea Born 1778 tellin clam
 Cardiida - Semelidae
Ervilia valhosierr Gardner 1928 clam
 Cardiida - Cardiidae
"Laevicardium laevigatum" = Laevicardium serratum
"Laevicardium laevigatum" = Laevicardium serratum Linnaeus 1758 cockle