Santo Antonio da Platina (Permian to of Brazil)

Also known as Rio do Rastro Formation

Where: Parana, Brazil (23.3° S, 50.1° W: paleocoordinates 41.1° S, 21.7° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Serrinha Member (Rio do Rastro Formation), Wordian to Wordian (268.8 - 259.9 Ma)

• 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.).

• member-level stratigraphic resolution

Environment/lithology: lacustrine; carbonaceous siltstone

• 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.
• Yellowish carbonate siltstone from the top of the Serrinha Member, Rio do Rasto Formation, Passa Dois Group, ParanĂ¡ Basin.

Size class: macrofossils

Collected by R. D. Davies in 1989

Primary reference: 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]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 134807: authorized by Carlos Jaramillo, entered by Gustavo Ballen on 17.10.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

 Palaeonisciformes - Platysomidae
Paranaichthys longianalis n. sp. Dias 2012