Where: São Paulo, Brazil (21.0° S, 49.2° W: paleocoordinates 25.6° S, 30.6° W)

• coordinate stated in text

• small collection-level geographic resolution

When: São José do Rio Preto Formation (Bauru Group), Late/Upper Santonian to Late/Upper Santonian (85.8 - 70.6 Ma)

• bed-level stratigraphic resolution

Environment/lithology: fluvial; lithified sandstone

Size class: macrofossils

Collected by Sérgio Luis Simonatto in 1995,2014

• Researchers and enthusiasts have been exploring the region for decades, but the Museu de Paleontologia de Monte Alto team began work in the region only in 1995, after contact with the farmer Sérgio Luis Simonatto. This enthusiast knew many fossiliferous points and collaborated with the team during the researches in the second half of the 1990s. The partnership resulted in a lot of collected fossils, including the material studied here. The part of the material MPMA 08–0016/95 was collected in 1995, during a fieldwork in property near the farm of Sérgio (S 21º00.983ʹ/W 049º13.053ʹ) and was partially described in 2014 by Méndez et al. (Figure 1). The fossil appeared on a small vertical wall and its complete removal was prevented due to vegetation. During a new search in 2014, the rest of the fossil was found and removed. After 18 years, the pieces were united, and the remains of Thanos could be better known.

Primary reference: R. Delcourt and F. V. Iori. 2020. A new Abelisauridae (Dinosauria: Theropoda) from São José do Rio Preto Formation, Upper Cretaceous of Brazil and comments on the Bauru Group fauna. Historical Biology 32(7):917-924 [G. Lloyd/G. Lloyd/P. Mannion]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 197956: authorized by Graeme Lloyd, entered by Graeme Lloyd on 03.12.2018

Creative Commons license: CC BY (attribution)