Mediospirifer-Atrypa-Camarotoechia Comm., Cano del Oeste Fmn., Sierra de Perija (Devonian of Venezuela)

Where: Venezuela (10.5° N, 72.5° W: paleocoordinates 47.9° S, 44.9° W)

• coordinate estimated from map

• local area-level geographic resolution

When: Cano del Oeste Formation (Rio Cachira Group), Eifelian (393.3 - 387.7 Ma)

• formation-level stratigraphic resolution

Environment/lithology: prodelta; green mudstone and sandstone

• Unit interpreted as prodelta. Overall sequence is interpreted as transgressive-regressive cycle related to prograding delta complex.
• "Lodolitas verde oliva y areniscas inmaduras. Incremento del grano hacia el tope."

Collection methods: Abundances are given by authors.

Primary reference: T. M. Sanchez and J. L. Benedetto. 1983. Paleoecologia, comunidades bentonicas y sucesion paleoambiental en el Grupo Rio Cachiri, Devonico, Sierra de Perija, Venezueal. Ameghiniana 20(3-4):163-198 [M. Foote/M. Foote/M. Foote]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 35900: authorized by Michael Foote, entered by Michael Foote on 08.01.2004, edited by Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

Cephalopoda
 Nautiloidea -
Nautiloidea indet. Agassiz 1847 nautiloid
Gastropoda
 Bellerophontida -
Bellerophontoidea indet. M'Coy 1851 snail
Bivalvia
 Ostreida - Pterineidae
"Ptychopteria (Actinopteria) sp." = Actinopteria
"Ptychopteria (Actinopteria) sp." = Actinopteria Hall 1884 oyster
 Modiomorphida - Modiomorphidae
Goniophora sp. Phillips 1848 clam
Strophomenata
 Strophomenida - Chonetidae
 Strophomenida - Rafinesquinidae
Leptaena sp. Dalman 1828
 Strophomenida - Leptostrophiidae
Leptostrophia sp. Hall and Clarke 1892
Rhynchonellata
 Rhynchonellida - Camarotoechiidae
Camarotoechia sp. Hall and Clarke 1893
 Orthida - Schizophoriidae
Schizophoria sp. King 1850
 Atrypida - Atrypidae
Atrypa sp. Dalman 1828
 Spiriferinida - Cyrtinidae
Cyrtina sp. Davidson 1858
 Spiriferida - Spinocyrtiidae
 Spiriferida - Cyrtospiriferidae
Cyrtospirifer sp. Nalivkin 1924
 Spiriferida - Mucrospiriferidae
Tylothyris sp. North 1920
Mucrospirifer sp. Grabau 1931
 Spiriferida - Hysterolitidae
 Athyridida - Meristellidae
Trilobita
 Phacopida - Acastidae
Greenops sp. Delo 1935 trilobite