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 105297: authorized by Richard Butler, entered by Richard Butler on 19.02.2011
Creative Commons license: CC BY (attribution)
Taxonomic list
Amphibia | |
"Parotosaurus pronus" = Stanocephalosaurus pronus2
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Reptilia | |
"Stenaulorhynchus major" = Stagonosuchus major1
| |
Ruhuhuaria reiszi n. gen. n. sp.3
| |
Osteichthyes | |
Aleodon brachyrhamphus n. gen. n. sp.
Aleodon brachyrhamphus n. gen. n. sp. Crompton 1955 cynodont UMCZ, fragmentary skull (field number 113C)
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Diademodontidae indet. Haughton 1925 cynodont UMCZ, cranial fragments (field numbers: 111A, 113A, 113B)
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"Trirachodon angustifrons n. sp." = Scalenodon angustifrons
"Trirachodon angustifrons n. sp." = Scalenodon angustifrons Parrington 1946 cynodont UMZC, skulls (field numbers 110A, 111B, 111C, 112B, 112C, 113D, 119B, 120A, 120B, 129A, 131, 134B)
| |
Bivalvia | |
Unio sp. Philipsson 1788 freshwater mussel |