Sample MT6, Ocana section (Devonian to of Colombia)

Where: Colombia (8.3° N, 73.4° W: paleocoordinates 49.8° S, 47.6° W)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Emsian to Emsian (407.6 - 387.7 Ma)

• Age range from PBDB ref. 9639. About 410 m above base of section.

• bed-level stratigraphic resolution

Environment/lithology: marine; gray, red mudstone

• interpreted as offshore, possibly dysoxic
• "sparsely gray to maroon mudstone, 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 Paleoecology and stratigraphy of Devonian sediments in the northern Andes, Colombia: paleogeographic implications [Unpublished Ph.D. thesis, University of Chicago]. 1-329 [M. Foote/M. Foote/M. Foote]more details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 35891: 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"
 Autobranchia -
Pterioida indet. Newell 1965 clam
Gastropoda
  -
Gastropoda indet. Cuvier 1797 snail
Stenolaemata
 Fenestrida - Fenestellidae
Strophomenata
 Productida - Chonostrophiidae
 Orthotetida - Pulsiidae
 Strophomenida -
Strophomenida indet. Opik 1934
"megastrophid"
 Strophomenida - Leptostrophiidae
Rhynchonellata
 Athyridida - Nucleospiridae
Nucleospira sp. Hall 1859
 Terebratulida - Cryptonellidae
 Spiriferinida - Cyrtinidae
Cyrtina sp. Davidson 1858
 Spiriferida - Ambocoeliidae
Ambocoelia sp. Hall 1860
 Spiriferida - Mucrospiriferidae
 Spiriferida - Acrospiriferidae
Acrospirifer sp. Wedekind 1926
 Spiriferida - Elythidae
"Elytha sp." = Elita
"Elytha sp." = Elita
 Rhynchonellida -
 Orthida - Rhipidomellidae
Dalejina sp. Havlicek 1953