Also known as Ponta Grossa; Irati; Iraty

Where: Paraná, Brazil (25.1° S, 50.2° W: paleocoordinates 45.6° S, 28.9° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Irati Formation (Passa Dois Group), Artinskian (290.1 - 279.3 Ma)

• "Die fossilführende Schicht von 4 m Dicke befindet sich 2 m oberhalb eines hellgelben Sandsteins, der Geschiebe enthält [The fossiliferous layer is 4 m thick and is 2 m above a light yellow sandstone containing glacial erratics]." (von Huene, 1941).

•Von Huene (1941) only gives Permian as the most precise age specification. In a quite recent publication it is stated that the Irati Formation is Artinskian in age, based on absolute ages obtained from zircons from a bentonite layer (Santos et al., 2006, Gondwana Res. 9).

• group of beds-level stratigraphic resolution

Environment/lithology: offshore; shale

Size class: macrofossils

Preservation: mold/impression

Collected by Bross, Dusén

• "Ein Teil der abgebildeten Schädel wird im Geologischen Museum der Universität Upsala aufbewahrt, und ihre Kautschuk-Abdrücke befinden sich im Riksmuseum zu Stockholm und im Paläontologischen Museum der Universität zu Berkeley in Californien; sie sind hier mit St bezeichnet. Alle anderen Exemplare werden im Geologischen Institut der Universität Tübingen aufbewahrt; sie sind hier mit T bezeichnet [Part of the figured specimens is stored in the Geological Museum of the University of Upsala, and the respective rubber moulds are in the Riksmuseum of Stockholm and in the Paleontological Musuem of the University of Berkeley, California; they are designated with a St. All other specimens are stored in the Geological Department of the University of Tübingen; they are designated with a T]." (von Huene, 1941).

•Since von Huene states that the material is in the collections for 30 years, the fossils must have been collected at around 1910.

Primary reference: F. v. Huene. 1941. Osteologie und Systematische Stellung von Mesosaurus. Palaeontographica Abteilung A 92:45-58 [J. Mueller/T. Liebrecht/T. Liebrecht]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 90573: authorized by Johannes Mueller, entered by Torsten Liebrecht on 07.08.2009

Creative Commons license: CC BY (attribution)