U15/1, east of the Mkongleko River (Triassic of Tanzania)

Where: Ruvuma, Tanzania (10.5° S, 35.5° E: paleocoordinates 54.0° S, 23.4° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Cynognathus Assemblage Zone Subzone C other 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: fluvial; siliciclastic sediments

• "other localities in the immediate area are characterized by fluvial sediments"

Size class: macrofossils

Collected by BMNH - University of London joint palaeontological expedition in 1963; reposited in the BMNH

Primary reference: P. M. Barrett, S. J. Nesbitt, and B. R. Peecook. 2014. A large-bodied silesaurid from the Lifua Member of the Manda beds (Middle Triassic) of Tanzania and its implications for body-size evolution in Dinosauromorpha. Gondwana Research [R. Butler/R. Butler]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 159740: authorized by Richard Butler, entered by Richard Butler on 08.08.2014

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Eosuchia -
Archosauriformes indet. Gauthier 1986 archosauromorph
NHMUK R36620, "Pallisteria"
 Dinosauromorpha - Silesauridae
Silesauridae indet. Langer et al. 2010 ornithodiran
NHMUK R16303, partial right femur