Sella C (Ordovician of Bolivia)

Where: Tarija, Bolivia (21.3° S, 64.6° W: paleocoordinates 42.8° S, 131.6° W)

• coordinate estimated from map

• local area-level geographic resolution

When: Sella Formation, Late/Upper Llandeilo (461.1 - 458.4 Ma)

• Most of Sella is Arenig, but the paper is pretty emphatic about it being upper Llandeilo. This could be the upper portion of the formation, but I cannot find indication that the Sella (or adjacent formations) do that.

Environment/lithology: lithified, gray, green siltstone and lenticular sandstone

• The lower member is composed of gray to green bioturbated siltstones interbedded with thin sandstone layers bearing lenticular shell beds. Coquinas often fill gutter casts and included brachiopods, trilobites, bivalves and nautiloids

Size class: macrofossils

Preservation: cast

Collection methods: Beds 2 & 3 are 100 and 175 m up section, and have the identical fauna & lithology.

Primary reference: C. Babin and L. Branisa. 1987. Ribeiria, Peelrophon y otros molluscos del Ordovíco de Bolivia. 4˚ Congreso Latinoamericano de Paleontología 1:119-129 [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 167377: authorized by Pete Wagner, entered by Pete Wagner on 13.03.2015

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Rostroconchia
 Ribeirioida - Technophoridae
Ribeiria spinosa n. sp.
Ribeiria spinosa n. sp. Babin and Branisa 1987
Gastropoda
 Bellerophontida - Tropidodiscidae
Peelerophon cf. oehlerti
Peelerophon cf. oehlerti Bergeron 1889 snail
Bivalvia
 Afghanodesmatida - Tironuculidae
"Ekaterodonta boliviensis n. sp." = Natasia boliviensis
"Ekaterodonta boliviensis n. sp." = Natasia boliviensis Babin and Branisa 1987 clam
 Cardioni - Coxiconchiidae
"Coxiconcha "n. sp."" = Coxiconchia
"Coxiconcha "n. sp."" = Coxiconchia Babin 1966 clam