Caima Quarry 1 (Carboniferous of Brazil)

Where: Caima, Brazil (4.0° S, 56.0° W: paleocoordinates 38.4° S, 34.4° W)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Itaituba Formation, Serpukhovian (330.9 - 323.2 Ma)

• Itaituba Formation rests conformably on the nearshore siliciclastic deposits of the Monte Alegre Formation, and is overlain by the Upper Carboniferous evaporites (salt and anhydrite) of the Nova Olinda Formation; basal part of Itaituba Formation is most likely latest Chesterian in age; the entire Itaituba Formation would range from Chesterian to Desmoinesian in age, if the Morrowan to Atokan faunas from the upper part of the lower Itaituba Formation are taken into account; possible mid-Carboniferous boundary may be positioned within the upper part of the Caima Quarry 1 sucession

• formation-level stratigraphic resolution

Environment/lithology: marine; argillaceous limestone and shale

• gray thin-bedded argillaceous limestone with intercalations of brown and gray shale and siltstone

Collection methods: all specimens housed in the Department of Geology, Niigata University, Japan, with prefix NUB

Primary reference: Z.-Q. Chen, J.-I. Tazawa, G. R. Shi and N. S. Matsuda. 2005. Uppermost Mississippian brachiopods from the basal Itaituba Formation of the Amazon Basin, Brazil. Journal of Paleontology 79(5):907-926 [T. Olszewski/L. Fall/L. Fall]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 52797: authorized by Tom Olszewski, entered by Leigh Fall on 20.08.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Strophomenata
 Productida - Productidae
 Productida - Linoproductidae
Marginovatia cf. catinulus Gordon and Henry 1990
 Orthotetida - Schuchertellidae
"Streptorhynchus hallianus" = Kiangsiella halliana
"Streptorhynchus hallianus" = Kiangsiella halliana Derby 1874
 Orthotetida - Orthotetidae
Rhynchonellata
 Athyridida - Athyrididae
 Spiriferinida - Punctospiriferidae
Punctospirifer sp. North 1920
 Spiriferida - Spiriferidae
 Spiriferida - Elythidae
 Orthida - Schizophoriidae
 Orthida - Rhipidomellidae