Sample C13, La Venta section (Devonian to of Colombia)

Where: Colombia (6.0° N, 73.0° W: paleocoordinates 51.3° S, 50.3° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Emsian to Emsian (407.6 - 387.7 Ma)

• Age range from PBDB ref. 9639. About 125 m above base of section.

• bed-level stratigraphic resolution

Environment/lithology: marine; brown shale

• interpreted as offshore, possibly dysoxic
• "very weathered rust-colored shale, laminated to thin bedded"

Collection methods: bulk

Primary reference: S. F. Barrett. 1986. Paleoecology and stratigraphy of Devonian sediments in the northern Andes, Colombia: paleogeographic implications [Unpublished Ph.D. thesis, University of Chicago]. 1-329 [M. Foote/M. Foote/M. Foote]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 35879: authorized by Michael Foote, entered by Michael Foote on 08.01.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

• Barrett (ref. 9602) gives a detailed faunal list for his entire dissertation, generally down to the species level. The individual samples, however, are presented in his fig. 24 in a form that coarsens the taxonomic resolution to the genus level or even higher. It seems that the brachiopods are more likely to be reported to the genus level.
Trilobita
 Phacopida - Phacopidae
Phacopidae indet. Hawle and Corda 1847 trilobite
Bivalvia
  -
"Pelecypoda indet." = Bivalvia
"Pelecypoda indet." = Bivalvia Linnaeus 1758 clam
"infaunal bivalves"
Gastropoda
  -
Gastropoda indet. Cuvier 1797 snail
Stenolaemata
 Fenestrida - Fenestellidae
Strophomenata
 Productida - Chonetidae
 Productida - Eodevonariidae
Eodevonaria sp. Twenhofel 1914
 Orthotetida - Pulsiidae
 Strophomenida -
Strophomenida indet. Opik 1934
"megastrophid"
 Strophomenida - Leptostrophiidae
 Strophomenida - Rafinesquinidae
Leptaena sp. Dalman 1828
 Strophomenida - Strophodontidae
"Strophodonta sp." = Strophomena (Strophodonta)
"Strophodonta sp." = Strophomena (Strophodonta) Hall 1852
Rhynchonellata
 Athyridida - Meristellidae
 Athyridida - Nucleospiridae
Nucleospira sp. Hall 1859
 Spiriferida - Mucrospiriferidae
 Spiriferida - Acrospiriferidae
Acrospirifer sp. Wedekind 1926
 Spiriferida - Elythidae
"Elytha sp." = Elita
"Elytha sp." = Elita
 Atrypida - Atrypidae
Atrypa sp. Dalman 1828
Inarticulata
  -
Anthozoa
 Rugosa -
Rugosa indet. horn coral