Sample R34F, Rovira (Devonian to of Colombia)

Where: Colombia (4.2° N, 75.2° W: paleocoordinates 50.3° S, 54.5° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Emsian to Emsian (407.6 - 387.7 Ma)

• bed-level stratigraphic resolution

Environment/lithology: marine; fine-grained sandstone and shale

• Biofacies 1, "offshore open marine paleoenvironments below wave base"
• "Rougly 130 m [exposure]: 70 m of basal sandstone with intercalations of conglomerate and shale, 30 m of dark gray shale, and at the top about 30 m of fine sandstone with shale interbeds. Collections R3-R5 come from the upper 30 m of fine-grained sandstone with shale interbeds; no detailed section was measured here."

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 Paleoecology and stratigraphy of Devonian sediments in the northern Andes, Colombia: paleogeographic implications [Unpublished Ph.D. thesis, University of Chicago]. 1-329 [M. Foote/M. Foote/M. Foote]more details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 35980: authorized by Michael Foote, entered by Michael Foote on 12.01.2004

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.
Show authors, comments, and common names
Gastropoda
  -
Gastropoda indet.
Gastropoda indet. Cuvier 1795 snail
Rhynchonellata
 Spiriferida - Acrospiriferidae
Acrospirifer sp.
Acrospirifer sp. Wedekind 1926
 Spiriferida - Mucrospiriferidae
Mucrospiriferidae indet.
 Athyridida - Nucleospiridae
Nucleospira sp.
Nucleospira sp. Hall 1859
Stenolaemata
 Cryptostomata - Fenestellidae
Fenestellidae indet.
Trilobita
 Phacopida - Phacopidae
Phacopidae indet.
Phacopidae indet. Hawle and Corda 1847 trilobite
Anthozoa
 Rugosa -
Rugosa indet.
Rugosa indet. horn coral