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