Passo das Tropas: Ladinian, Brazil

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Bayera sp.
Sewardia sp. Zeiller 1900
Cycadopsida - Pteridospermales
? Thinnfeldia sp. Ettingshausen 1852
Coniferales
Samaropsis sp. Göppert 1864
? Stenorachis sp. (Andrews 1970)
original and current combination Stenorhachis
Stenorachis sp. (Andrews 1970)
original and current combination Stenorhachis
unclassified
Zuberia sp. Frenguelli 1944
Polypodiopsida - Equisetales - Calamitaceae
Neocalamites sp. Halle 1908
Peltaspermopsida - Peltaspermales - Umkomasiaceae
Pachypteris sp. Brongniart 1828
Gymnospermopsida - Corystospermales - Corystospermaceae
Pteruchus sp. Thomas 1933
Dicroidium sp. Gothan 1912
Insecta - Trichoptera
Sanctipaulus mendesi n. gen., n. sp. Pinto 1956
1 specimen
URGS 241 (1 measurement)
Branchiopoda - Limnadiidae
Estheriina sp. Jones 1897
Branchiopoda - Lioestheriidae
Estherites wianamatensis (Mitchell 1927)
Branchiopoda - Euestheriidae
Euestheria azambujai n. sp. Pinto 1956
see common names

Geography
Country:Brazil State/province:Rio Grande do Sul
Coordinates: 29.7° South, 53.8° West (view map)
Paleocoordinates:51.8° South, 18.8° West
Basis of coordinate:estimated from map
Time
Period:Triassic Epoch:Middle Triassic
Stage:Ladinian 10 m.y. bin:Triassic 2
Key time interval:Ladinian
Age range of interval:242.00000 - 237.00000 m.y. ago
Stratigraphy
Formation:Santa Maria
Stratigraphy comments: Sommer et al (1985) argue for a T2 age, whereas Bortoluzz et al had previously believed a T3 age most likely - all based on floristic evidence and correlations
Lithology and environment
Primary lithology: sandstone
Secondary lithology: conglomerate
Environment:fluvial indet. Tectonic setting:rift
Geology comments: Tectonically active small basins with an en echelon arrangement. Extensional basins are controlled by the structures of the Damara-Katanga-Mozambique (DKM) mobile belt. The South American branch of the Waterberg-Omaruru fault system (Namibia) is related to the Waterberg rift basin.
Taphonomy
Modes of preservation:mold/impression
Size of fossils:macrofossils,mesofossils
Collection methods and comments
Reason for describing collection:general faunal/floral analysis
Metadata
Database number:116119
Authorizer:M. Clapham Enterer:J. Karr
Modifier:M. Clapham Research group:paleobotany,paleoentomology
Created:2011-09-05 10:21:39 Last modified:2017-05-23 16:34:15
Access level:the public Released:2012-03-05 10:21:39
Creative Commons license:CC BY
Reference information

Primary reference:
37426. I. D. Pinto. 1956. Artrópodos da Formaçāo Santa Maria (Triássico Superior) do Rio Grande Do Sul, com notícias sôbre alguns restos vegetais. Boletim da Sociedade Brasileira de Geologia 5:75-95 [M. Clapham/J. Karr/M. Clapham]