Boa Esperança farm (Cretaceous to of Brazil)

Also known as Baurusuchus albertoi type locality; Buriti

Where: São Paulo, Brazil (20.6° S, 50.5° W: paleocoordinates 24.7° S, 33.5° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Adamantina Formation (Bauru Group), Late/Upper Campanian to Late/Upper Campanian (83.5 - 66.0 Ma)

• Whereas a Turonian–Santonian age for the Adamantina Formation, based on ostracods and charophytes, has been proposed (Dias-Brito et al. 2001), other authors have argued for a Campanian–Maastrichtian age, based on vertebrate fossils and an alternative interpretation of the ostracod fauna (e.g. Gobbo-Rodrigues et al. 1999; Fernandes and Coimbra 2000). Most recently, stratigraphic work on the Bauru Basin has argued for a late Campanian–early Maastrichtian age for this stratigraphic unit (Batezelli 2017).

• bed-level stratigraphic resolution

Environment/lithology: fluvial; sandstone

• Deposits of the Adamantina Formation are presently related to an alluvial system comprising lacustrine deltas and fluvial braided and meandering deposits, probably related with cycles of flooding events in the General Salgado area
• The Adamantina Formation comprises massive to stratified sandstones and mudstones

•a lower, 2.5 m thick package of fine-grained massive to slightly stratified sandstone with calcite cement, including calcite nodules, coprolites, and the C. stenognathus holotype, which probably represents exposed sand bars in a fluvial braided system

Size class: macrofossils

Collected in 2004

• Caipirisuchus: Museu de Zoologia da Universidade de Sao Paulo, collected by authors HZ and ABC

Primary reference: P. M. Nascimento and H. Zaher. 2010. A new species of Baurusuchus (Crocodyliformes, Mesoeucrocodylia) from the Upper Cretaceous of Brazil, with the first complete postcranial skeleton described for the family Baurusuchidae. Papéis Avulsos de Zoologia 50(21):323-361 [P. Mannion/P. Mannion]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 112699: authorized by Philip Mannion, entered by Philip Mannion on 16.07.2011, edited by Jonathan Tennant

Creative Commons license: CC BY (attribution)

Taxonomic list

 Loricata - Baurusuchidae
Baurusuchus albertoi n. sp. Nascimento and Zaher 2010 crocodilian
MZSP-PV 140 (holotype)
 Loricata - Sphagesauridae
Caipirasuchus stenognathus n. sp. Pol et al. 2014 crocodilian
MZSP-PV 139. An almost complete skull, lacking the posterior left region and part of the occipital region, found in articulation with complete lower jaws