Passo do São Borja outcrop: Artinskian - Kungurian, Brazil
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Malacostraca
|
|||||||
|
Liocaris huenei
Beurlen 1931
|
|||||||
|
Mesosauridae
|
|||||||
| see common names | |||||||
Geography
| Country: | Brazil | State/province: | Rio Grande do Sul | County: | São Gabriel |
| Coordinates: | 30.4° South, 54.6° West (view map) | ||||
| Paleocoordinates: | 49.7° South, 38.6° West (Wright 2013) | ||||
| Basis of coordinate: | based on nearby landmark | ||||
| Geographic resolution: | small collection |
Time
| Period: | Permian | Epoch: | Cisuralian |
| Stage: | Artinskian - Kungurian | 10 m.y. bin: | Permian 2 |
| Key time interval: | Artinskian - Kungurian | ||
| Age range of interval: | 290.1 - 274.4 m.y. ago |
Stratigraphy
| Geological group: | Passa Dois | Formation: | Irati | ||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: "Irati Formation, a lower Permian stratigraphic unit of the Parana Basin" "Passa Dois Group" "stratigraphical equivalent of the Mangrullo Formation in Uruguay (Parana Basin) and the Whitehill Formation in South Africa (Karoo Basin)." Using the stages for the Whitehill here given lack of specificity in reference. | |||||
Lithology and environment
| Primary lithology: | tabular,hummocky CS,wavy/flaser/lenticular bedding dolomite |
| Lithology description: "a tabular 1 m high dolomitic limestone bed with hummocky cross stratification of 8 m wavelength and wavy laminations enclosing great concentrations of disarticulated, fragmented and abraded mesosaurid bones and pygocephalomorph remains" | |
| Environment: | shallow subtidal indet. |
| Glacial or sequence phase: | maximum flooding surface |
| Geology comments: "interpreted as a large epicontinental sea (Irati–Whitehill Sea) which represents the maximum of a complete transgressive–regressive cycle" | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | field collection |
| Reason for describing collection: | taxonomic analysis |
| Collection method comments: Reposited at Paleontology Museum Iraja Damiani Pinto, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil, | |
Metadata
| Database number: | 230311 | ||
| Authorizer: | P. Novack-Gottshall | Enterer: | P. Novack-Gottshall |
| Created: | 2023-06-08 09:35:56 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2023-06-08 09:35:56 |
| Creative Commons license: | CC0 |
Reference information
Primary reference:
| 84995. | P.G. Pazinato, M.B. Soares, and K. Adami-Rodriques. 2016. Systematic and palaeoecological significance of the first record of Pygocephalomorpha females bearing oöstegites (Malacostraca, Peracarida) from the lower Permian of southern Brazil. Palaeontology 59(6):817-826 [P. Novack-Gottshall/P. Novack-Gottshall] |