TU 959 - Refinería Panamá [middle Gatun Fm] (Miocene of Panama)

Where: Panama (9.4° N, 79.8° W: paleocoordinates 9.1° N, 78.5° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

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

• STRATIGRAPHIC RELATIONS: From the Gatun Fm, which regionally overlies the Caimito Fm or Mesozoic basement. 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 Sr dating for nearby sections indicates an age of approximately 10.5 Ma (Hendy, unpublished data). STRATIGRAPHIC POSITION: From unknown position within formation.

• bed-level stratigraphic resolution

Environment/lithology: coastal; unlithified, shelly/skeletal, sandy siltstone

• ENVIRONMENT: Shallow-marine, siliciclastic environment.
• SPECIFIC LITHOLOGY: Sandy mudstone. LITHIFICATION: Poorly-lithified, based on observations of material.

Size class: macrofossils

Preservation: original aragonite

Collected by Vokes & Vokes; reposited in the USNM

Collection methods: surface (in situ),

• COLLECTOR: E. Vokes and H. Vokes. REPOSITORY: USNM.

Primary reference: E. H. Vokes and H. E. Vokes. 2000. Catalogue of Tulane University fossil localities. Unpublished notes [A. Hendy/A. Hendy/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 92446: authorized by Austin Hendy, entered by Austin Hendy on 13.11.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Limited to Trajana (Nassariidae) described in text, and subsequent publications. NOMENCLATURE: Authoritative publication with modern nomenclature and species-resolution identifications.
Gastropoda
 Neogastropoda - Nassariidae
Trajana (Nerva) woodringi2 Vokes 1969 snail
 Neogastropoda - Muricidae
Poirieria (Panamurex) gatunensis3 Brown and Pilsbry 1911 murex snail
 Sorbeoconcha - Personidae
Distorsio decussata1 Valenciennes 1832 snail
 Sorbeoconcha - Ranellidae
Monoplex aquatilis1 Reeve 1844 triton shell