Woodring Loc. 183 - western area [upper Gatun Fm] (Miocene of Panama)

Also known as USGS Loc. 8487

Where: Panama (9.2° N, 80.0° W: paleocoordinates 8.9° N, 78.6° W)

• coordinate stated in text

• outcrop-level geographic resolution

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

• Upper 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 Sr dating for nearby sections indicates an age of approximately 8.5 Ma (Hendy, unpublished data).

• bed-level stratigraphic resolution

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

• No specific environmental data presented.
• LITHOLOGY: Siliciclastic. LITHIFICATION: Poorly-lithified, on the basis of figured specimens and outcrop observations.

Size class: macrofossils

Preservation: original aragonite

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 93052: authorized by Austin Hendy, entered by Austin Hendy on 24.12.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for gastropoda and bivalvia. NOMENCLATURE: Authoritative publication, with relatively modern nomenclature, and species-resolution identifications.
Bivalvia
 Nuculanida - Nuculanidae
Saccella balboae7 Brown and Pilsbry 1911 pointed nut clam
 Nuculida - Nuculidae
Acila (Acila) isthmica7 Brown and Pilsbry 1911 divaricate nutclam
 Arcida - Arcidae
Anadara (Tosarca) veatchi7 Olsson 1922 ark
Anadara (Rasia) dariensis7 Brown and Pilsbry 1911 ark
 Pectinida - Pectinoidae
Argopecten levicostatus8 Toula 1909 calico scallop
 Ostreida - Gryphaeidae
Pycnodonte (Pycnodonte) sp.8 Fischer von Waldheim 1835 oyster
 Cardiida - Veneridae
Lirophora (Panchione) mactropsis8 Conrad 1855 venus clam
"Agriopoma (Pitarella) gatunensis" = Callocardia (Agriopoma) gatunensis8 Dall 1903 venus clam
 Cardiida - Chamidae
Arcinella arcinella8 Linnaeus 1767 jewel box
 Pholadida - Corbulidae
Varicorbula disparilis8 d'Orbigny 1853 clam
Caryocorbula oropendula8 Olsson 1922 clam
SUBSPECIES: Caryocorbula oropendula dolicha
Gastropoda
 Neogastropoda - Buccinidae
Antillophos (Antillophos) monachus5 Woodring 1964 true whelk
 Neogastropoda - Columbellidae
Strombina (Strombina) lessepsiana1 Brown and Pilsbry 1911 snail
common in Woodring (1957-1982)
 Neogastropoda - Olividae
"Oliva (Oliva) reticularis" = Oliva reticularis5
"Oliva (Oliva) reticularis" = Oliva reticularis5 Lamarck 1811 olive snail
 Neogastropoda - Cancellariidae
Cancellaria sathra2 Woodring 1973 snail
SUBSPECIES: Cancellaria (Cancellaria) epistomifera lipara
 Neogastropoda - Turridae
Polystira sp.3 Woodring 1928 turrid
 Neogastropoda - Terebridae
Strioterebrum spiriferum6 Dall 1895 auger snail
 Neogastropoda - Marginellidae
Volvarina leander6 Brown and Pilsbry 1911 margin shell
 Sorbeoconcha - Personidae
"Distorsio (Rhysema) decussata" = Distorsio decussata4
"Distorsio (Rhysema) decussata" = Distorsio decussata4 Valenciennes 1832 snail
SUBSPECIES: Distorsio (Rhysema) decussata gatunensis
 Sorbeoconcha - Naticidae
Stigmaulax guppiana Toula 1909 moon snail
"Natica (Naticarius) stenopa" = Naticarius moon snail
Polinices stanislasmeunieri Maury 1917 moon snail
 Epitonioidea - Epitoniidae
 Cerithioidea - Turritellidae
"Turritella (Torcula) mimetes" = Turritella (Broderiptella) mimetes
"Turritella (Torcula) mimetes" = Turritella (Broderiptella) mimetes Brown and Pilsbry 1911 turret shell
 Pseudomelanoidea - Pseudomelaniidae
 Heterostropha - Architectonicidae
"Architectonica (Architectonica) nobilis" = Architectonica nobilis4
"Architectonica (Architectonica) nobilis" = Architectonica nobilis4 Röding 1798 sundial
Scaphopoda
 Gadilida - Gadilidae
"Cadulus (Gadilopsis) dentalinus" = Gadilopsis7
"Cadulus (Gadilopsis) dentalinus" = Gadilopsis7 tusk shell