Exaeretodon site, 6 km west of Botucarai hill (Triassic to of Brazil)

Also known as km 136 of railroad Br 287, Sesmaria do Pinhal

Where: Rio Grande do Sul, Brazil (29.7° S, 52.9° W: paleocoordinates 39.6° S, 14.6° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Alemoa Member (Santa Maria Formation), Carnian to Carnian (237.0 - 208.5 Ma)

• Santa Maria 2 (upper half of Santa Maria Formation), from the so-called "Rhynchosaur Cenozone" or "Hyperodapedon Assemblage Zone". The Hyperodapedon Assemblage Zone is generally considered late Carnian in age, but could extend into the early Norian.

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Collected in 1985

Primary reference: F. Abdala, M. C. Barberena, and J. Dornelles. 2002. A new species of the traversodontid cynodont Exaeretodon from the Santa Maria Formation (Middle/Late Triassic) of southern Brazil. Journal of Vertebrate Paleontology 22(2):313-325 [R. Butler/R. Butler]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 175572: authorized by Richard Butler, entered by Richard Butler on 14.12.2015

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Reptilia
 Rhynchosauria - Rhynchosauridae
cf. Hyperodapedon sp.2
cf. Hyperodapedon sp.2 Huxley 1859 rhynchosaur
"Hyperodapedon-like rhynchosaur"
 Diapsida - Proterochampsidae
Proterochampsa nodosa n. sp.
Proterochampsa nodosa n. sp. Barberena 1982 archosauromorph
MCP 1694 PV (holotype), skull
Osteichthyes
 Therapsida - Traversodontidae
Exaeretodon riograndensis n. sp.
Exaeretodon riograndensis n. sp. Abdala et al. 2002 cynodont
MCP 1522 PV (holotype), MCP 2361 PV, MCP 3843 PV
 Therapsida - Therioherpetidae
Charruodon tetracuspidatus n. gen. n. sp.1
Charruodon tetracuspidatus n. gen. n. sp.1 Abdala and Ribeiro 2000 cynodont
MCP 3934 PV (holotype), fragment of dentary
1Abdala and Ribeiro 2000; 2Langer et al. 2007