Chácara Sr. Raven, 2km NE of Corumbataí: Capitanian - Wuchiapingian, Brazil

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia - Modiomorphida - Modiomorphidae
Myoconcha sp. Sowerby 1824
Mendes 1952
Bivalvia - Pholadomyida - Pachydomidae
Bivalvia - Pholadomyida - Megadesmidae
Jacquesia brasiliensis (Cowper Reed 1929)
Bivalvia - Carditida - Astartidae
Pinzonellopis occidentalis (Cowper Reed 1932)
see common names

Geography
Country:Brazil State/province:São Paulo
Coordinates: 22.2° South, 47.6° West (view map)
Paleocoordinates:31.7° South, 12.6° West (Wright 2013)
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Period: Permian Epoch: Guadalupian - Lopingian
Stage: Capitanian - Wuchiapingian 10 m.y. bin: Permian 4
Key time interval: Capitanian - Wuchiapingian
Age range of interval: 264.28 - 254.14 m.y. ago
Stratigraphy
Geological group:Passa Dois Formation:Corumbataí
Stratigraphic resolution:group of beds
Stratigraphy comments: Mendes (1944) describes these beds as Upper Triassic on the basis of the bivalve fauna.
Corumbataí Formation is Capitanian - Wuchiapingian in age based on a combination of U/Pb zircon dating and relationship with other local formations (Rocha-Campos et al. 2019).
These beds are from the 'upper horizon' described in Mendes (1944).
Lithology and environment
Primary lithology:white marl
Environment:lacustrine indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:taxonomic analysis
Metadata
Database number:206338
Authorizer:A. Dunhill Enterer:B. Allen
Modifier:B. Allen
Created:2019-11-12 09:39:02 Last modified:2025-02-22 15:12:02
Access level:the public Released:2019-11-12 09:39:02
Creative Commons license:CC0
Reference information

Primary reference:
70875. J. C. Mendes. 1944. Lamelibrânquios triássicos de Rio Claro (Estado de São Paulo). Boletim Da Faculdade De Filosofia Ciências E Letras, Universidade De São Paulo, Geologia 1:41-74 [A. Dunhill/B. Allen]

Secondary references:

48738 J. C. Mendes. 1952. Formação Corumbataí na região do Rio Corumbataí (estratigrafia e descrição dos lamelibrânquios). Boletim da Faculdade de Filosofia Ciéncias e Letras 145. Series Geologia 8:1-119 [P. Wagner/P. Wagner/P. Wagner]