Santo Antonio da Platina: Wordian - Capitanian, Brazil
collected by R. D. Davies 1989
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Palaeonisciformes
- Platysomidae
|
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| (22 measurements) | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Brazil | State/province: | Parana | County: | Santo Antonio da Platina |
| Coordinates: | 23.3° South, 50.1° West (view map) | ||||
| Paleocoordinates: | 34.8° South, 18.1° West (Wright 2013) | ||||
| Basis of coordinate: | stated in text | ||||
| Geographic resolution: | outcrop |
Time
| Period: | Permian | Epoch: | Guadalupian |
| Stage: | Wordian - Capitanian | 10 m.y. bin: | Permian 4 |
| Key time interval: | Wordian - Capitanian | ||
| Age range of interval: | 266.9 - 259.51 m.y. ago | ||
| Age estimate: | 268 to 260 Ma (unknown) |
Stratigraphy
| Geological group: | Passa Dois | Formation: | Rio do Rastro | Member: | Serrinha |
| Stratigraphic resolution: | member | ||||
| Stratigraphy comments: For Rohn (1994), the stratigraphic position of this outcrop is equivalent to the top of the Serrinha Member of Rio do Rasto Formation, zone 8B (Upper Permian). Holz et al. (2010) positioned the Serrinha Member in the Guadalupian (Wordian-Captanian, from 268–260 M.y.). | |||||
Lithology and environment
| Primary lithology: | carbonaceous siltstone |
| Includes fossils? | Y |
| Lithology description: Yellowish carbonate siltstone from the top of the Serrinha Member, Rio do Rasto Formation, Passa Dois Group, Paraná Basin. | |
| Environment: | lacustrine indet. |
| Geology comments: The depositional paleoenvironment of the Rio do Rasto Formation was discussed by several authors, and the paleogeographical simplified map presented in Figure 13 was based on some of these interpretations (e.g. Mendes 1967; Ragonha 1989; Rohn & Rosler 1990; Lavina 1991; Stollhofen et al. 2000; Holz et al. 2010). Paranaichthys longianalis lived in relatively shallow freshwater lakes and rivers, probably feeding on hard food items such as small bivalve mollusks and conchostracean crustaceans as indicated by its dentition. | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
| Preservation of anatomical detail: | good |
Collection methods and comments
| Collection excludes: | some microfossils | ||
| Collection methods: | survey of museum collection | ||
| Reason for describing collection: | taxonomic analysis | ||
| Collectors: | R. D. Davies | Collection dates: | 1989 |
Metadata
| Also known as: | Rio do Rastro Formation | ||
| Database number: | 134807 | ||
| Authorizer: | C. Jaramillo | Enterer: | G. Ballen |
| Created: | 2012-10-17 04:06:19 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | group members | Released: | 2015-10-17 04:06:19 |
| Creative Commons license: | CC0 | ||
Reference information
Primary reference:
| 43300. | E. V. Dias. 2012. A new deep-bodied fossil fish (Actinopterygii) from the Rio do Rasto Formation, Parana Basin, Brazil. Zootaxa 3192:1-23 [C. Jaramillo/G. Ballen] |