B10, Stockley (Triassic of Tanzania)

Where: Ruvuma, Tanzania (10.4° S, 35.3° E: paleocoordinates 53.8° S, 23.0° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Cynognathus Subzone C zone, Lifua Member (Manda Beds Formation), Anisian (247.2 - 242.0 Ma)

• Lifua Member of the Manda beds is "correlated with Subzone C of the Cynognathus Assemblage Zone. This correlation was based on the shared occurrences of the dicynodont Angonisaurus and the cynodonts Diademodon and Cricodon. Subzone C of the Cynognathus Assemblage Zone is suggested to be late Anisian. The Rio Mendoza Formation of Argentina correlates with Subzone C of the Cynognathus Assemblage Zone(Rubidge 2005), and thus the Lifua Member of the Manda Beds. The top of the Rio Mendoza Formation has been dated at 243 ± 5 Ma (Avila et al. 2006), which is consistent with the Anisian age as predicted by biostratigraphy." (Nesbitt et al. 2010: Nature 464:95-98)

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Collected by Stockley in 1930

• SAM: Iziko South African Museum, Cape Town

Primary reference: S. H. Haughton. 1932. On a collection of Karroo vertebrates from Tanganyika Territory. Quarterly Journal of the Geological Society of London 88(4):634-671 [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 136941: authorized by Richard Butler, entered by Richard Butler on 07.12.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Rhynchosauria - Rhynchosauridae
Stenaulorhynchus major n. sp. Haughton 1932 rhynchosaur
SAM S337, distal left humerus