B26, Gingama (Triassic of Tanzania)

Where: Ruvuma, Tanzania (10.5° S, 34.8° E: paleocoordinates 53.9° S, 23.4° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: 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 Parrington

Collection methods: surface (float),

• UMZC: University Museum of Zoology, Cambridge, UK

Primary reference: A. W. Crompton. 1955. On some Triassic cynodonts from Tanganyika. Proceedings of the Zoological Society of London 125:617-669 [R. Butler/R. Butler]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 105298: authorized by Richard Butler, entered by Richard Butler on 19.02.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Chondrichthyes
 Hybodontiformes - Hybodontidae
Hybodontidae indet. Agassiz 1843 elasmobranch
Osteichthyes
 Dipnoi -
Dipnoi indet. lungfish
 Temnospondyli -
 Therapsida - Traversodontidae
Scalenodon charigi n. sp. Crompton 1972 therapsid
UMZC, maxilla (field number 136)