Esperanca Farmstead, Near the José de Freitas village (Carboniferous to of Brazil)

Also known as Esperanca dolostone, Piauí Formation

Where: Brazil (4.7° S, 42.7° W: paleocoordinates 38.0° S, 16.9° W)

• coordinate stated in text

• local area-level geographic resolution

When: Esperanca Member (Piauí Formation), Morrowan to Morrowan (318.1 - 314.6 Ma)

• STRATIGRAPHIC RELATIONS: Esperanca dolostone facies from the uper part of the Piauí Fm. THICKNESS: Mucambo Dolostone is 15 m thick. AGE: Middle Pennsyvanian (Morrowan-Desmoinesian). STRATIGRAPHIC POSITION: Unknown position in unit.

• group of beds-level stratigraphic resolution

Environment/lithology: lithified, shelly/skeletal dolomite

• SEQUENCE STRATIGRAPHY AND ENVIRONMENT: Beds document a period of sea-level rise and resulting transgression, when a large carbonate and evaporite platform developed.
• SPECIFIC LITHOLOGY: Dolostone with shell pavements. LITHIFICATION: Lithified based on facies description and taphonomic condition (all specimens are molds).

Size class: macrofossils

Preservation: cast, mold/impression

Collection methods: quarrying,

• COLLECTORS: Presumably collected by Anelli and others. REPOSITORY: Laboratorio de Paleontologia Sistematica at the Instituto de Geosciencias (GP/IT), Universidade de Sao Paulo, Sao Paulo, Brazil; Departamento Nacional da Producao Minerall (DNPM); Companhia de Pesquisas de REcursos Minerais (CPRM), Rio de Janeiro, Brazil.

Primary reference: L. E. Anelli, A. C. Rocha-Campos, and M. G. Simoes. 2006. Pennsylvannian pteriomorphian bivalves from the Piauí Formation, Parnaíba Basin, Brazil. Journal of Paleontology 80(6):1135-1141 [A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 67803: authorized by Austin Hendy, entered by Austin Hendy on 10.12.2006, edited by Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Only includes specimens that are specified (in figures) to belong this member (facies), although others are mentioned in the text as belonging to the formation. NOMENCLATURE: Authoritative publication, with species level and subgenus designations.
 Anomalodesmata -
 Myalinida - Myalinidae
Septimyalina perattenuata Meek and Hayden 1858 clam
 Ostreida - Pinnidae
? Meekopinna americana Meek 1867 oyster