Marchezan, São João do Polêsine: Tuvalian, Brazil
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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unclassified
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Prozostrodon brasiliensis
(Barberena et al. 1987)
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| CAPPA/UFSM 0123, right lower jaw | ||||||||||
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Reptilia
- Herrerasauridae
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Gnathovorax cabreirai n. gen., n. sp.
Pacheco et al. 2019
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Pacheco et al. 2019 | 1 specimen | ||||||||
| CAPPA/UFSM 0009 | ||||||||||
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Reptilia
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Hyperodapedon sp.
Huxley 1859
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| see common names | ||||||||||
Geography
| Country: | Brazil | State/province: | Rio Grande do Sul |
| Coordinates: | 29.6° South, 53.5° West (view map) | ||
| Paleocoordinates: | 37.9° South, 9.8° West (Wright 2013) | ||
| Basis of coordinate: | estimated from map | ||
| Geographic resolution: | outcrop |
Time
| Period: | Triassic | Epoch: | Late Triassic |
| Stage: | Carnian | 10 m.y. bin: | Triassic 3 |
| Key time interval: | Tuvalian | Zone: | Hyperodapedon |
| Age range of interval: | 233.6 - 227.3 m.y. ago | ||
| Age estimate: | 233.23 ± 0.73 Ma (other) |
Stratigraphy
| Geological group: | Rosário do Sul | Formation: | Santa Maria | ||
| Stratigraphy comments: Santa Maria Formation, Candelária Sequence, Paraná Basin | |||||
Lithology and environment
| Primary lithology: | mudstone |
| Lithology description: "The lithofacies at the Marchezan site consists of nonlaminated to finely laminated reddish mudstones, with sandstone lenses, similar to other outcrops of the Hyperodapedon AZ (Zerfass et al. 2003). In addition, there are rhythmites and sigmoidal massive to climbing cross-laminated sandstone bodies." (Pacheco et al. 2018) | |
| Environment: | lacustrine delta plain |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | taxonomic analysis |
Metadata
| Database number: | 196709 | ||
| Authorizer: | A. Dunhill, G. Lloyd | Enterer: | B. Allen, G. Lloyd |
| Modifier: | M. Carrano | ||
| Created: | 2018-10-01 07:03:20 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2018-10-01 07:03:20 |
| Creative Commons license: | CC0 |
Reference information
Primary reference:
| 66944. | C. P. Pacheco, A. G. Martinelli, A. E. B. Pavanatto, M. B. Soares, and S. Dias-da-Silva. 2018. Prozostrodon brasiliensis, a probainognathian cynodont from the Late Triassic of Brazil: second record and improvements on its dental anatomy. Historical Biology 30(4):475-485 [A. Dunhill/B. Allen] |
Secondary references:
| 71101 | C. Pacheco, R. T. Muller, M. Langer, F. A. Pretto, L. Kerber and S. Dias Silva. 2019. Gnathovorax cabreirai: a new early dinosaur and the origin and initial radiation of predatory dinosaurs. PeerJ 7(e7963) [G. Lloyd/G. Lloyd] |