Where: Rio Grande do Sul, Brazil (29.6° S, 53.4° W: paleocoordinates 37.0° S, 15.7° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Ictidosauria other zone, Caturrita Formation (Rosário do Sul Group), Norian (228.0 - 208.5 Ma)

• upper layers of the Santa Maria 2 Sequence of the Santa Maria Supersequence, corresponding lithostratigraphically to the Caturrita Formation. Ictidosauria or Mammaliamorpha Assemblage Zone (= Jachaleria Interval)

•

•Caturrita was originally considered Carnian-Norian in age; however, recent recalibration of the Triassic timescale suggests a Norian age (e.g. Langer et al. 2010; Brusatte et al. 2010. Earth-Science Reviews 101:68-100)

• group of beds-level stratigraphic resolution

Environment/lithology: fluvial; siltstone and fine-grained sandstone

Size classes: macrofossils, mesofossils

Collected in 2002

Collection methods: quarrying,

• MCN/PV: Fossil Vertebrate Collection, Museu de Ciencias Naturais, Fundacao Zoobotanica do Rio Grande do Sul, Porto Alegre, Brazil

•UFRGS: Institute of Geology, Universidade Federal de Rio Grande do Sul, Porto Alegre, Brazil

•UNISINOS: Universidade do Vale do Rio dos Sinos, Rio Grande do Sul, Brazil

Primary reference: G. Brea, J. F. Bonaparte, C. L. Schultz and A. G. Martinelli. 2005. A new specimen of Guaibasaurus candelariensis (basal Saurischia) from the Late Triassic Caturrita Formation of southern Brazil. In A. W. A. Kellner, D. D. R. Henriques, and T. Rodrigues (eds.), II Congresso Latino-Americano de Paleontologia de Vertebrados, Boletim de Resumos. Museum Nacional/UFRJ, Rio de Janeiro 55-56 [M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 55446: authorized by Matthew Carrano, entered by Matthew Carrano on 25.10.2005, edited by Richard Butler, Terri Cleary and Emma Dunne

Creative Commons license: CC BY (attribution)