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

Also known as USGS 6029b

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 Sr dating for nearby sections indicates an age of approximately 10.1 Ma (Hendy, unpublished data).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. 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 93168: 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.
 Globigerinaceae - Globigerinidae
Globigerina bulloides1 d'Orbigny 1826
 Arcida - Arcidae
 Pectinida - Pectinoidae
"Flabellipecten gatunensis" = Leopecten gatunensis4, Lindapecten buchivcanoanus2
"Flabellipecten gatunensis" = Leopecten gatunensis4 Toula 1909 scallop
SUBSPECIES: Flabellipecten gatunensis
 Pectinida - Anomiidae
Anomia simplex4 d'Orbigny 1845 jingle
 Ostreida - Ostreidae
Ostrea equestris4 Say 1834 oyster
SUBSPECIES: Ostrea equestris heothina
 Cardiida - Mactridae
Mactrellona alata4 Spengler 1802 clam
 Cardiida - Veneridae
Chione (Chionopsis) tegulum4 Brown and Pilsbry 1911 venus clam
Dosinia (Dosinia) delicatissima4 Brown and Pilsbry 1913 venus clam
Lamelliconcha cora4 Brown and Pilsbry 1911 venus clam
Cyclinella cylica4 venus clam
 Cardiida - Tellinidae
Psammacoma gatunensis4 Toula 1909 tellin clam
Tellina (Eurytellina) angulosa4 Gmelin 1791 tellin clam
SUBSPECIES: Tellina (Eurytellina) angulosa costaricana
 Cardiida - Semelidae
Semele laevis4 Sowerby 1833 clam
SUBSPECIES: Semele laevis costaricensis
Ervilia valhosierr4 Gardner 1928 clam
 Cardiida - Cardiidae
Trachycardium (Dallocardia) dominicense4 Gabb 1873 cockle
SUBSPECIES: Trachycardium (Dallocardia) dominicense dominicense
"Laevicardium laevigatum" = Laevicardium serratum4 Linnaeus 1758 cockle
 Sorbeoconcha - Turritellidae
Turritella (Torcula) ? gatunensis Conrad 1857 turret shell
SUBSPECIES: Turritella gatunensis gatunensis
Turritella (Torcula) abrupta Spieker 1922 turret shell
Turritella (Torcula) ? matarucana Hodson 1926 turret shell