B1, Kawinga Gap (Lower Bone Bed, K6) (Permian of Tanzania)

Also known as Ruhuhu Coalfields, Songea District, Survey No. S246, Karroo, Karoo

Where: Ruvuma, Tanzania (10.2° S, 35.2° E: paleocoordinates 55.0° S, 15.4° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Cistecephalus other zone, Usili Formation (Songea Group), Wuchiapingian (259.9 - 254.2 Ma)

• "Lower Bone Bed [K6]" - now recognised as part of the Usili Formation

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; coarse-grained sandstone and concretionary, gray, green mudstone

• General notes from Stockley (1932): K6, Lower Bone Bed. Thick-bedded, coarse, gritty, current-bedded sandstone often containing reptilian bones, and marls or greenish and grey mudstones with several seams of nodular limestone, also frequently containing fossil bones. Also fossil wood (Dadoxylon).

Size class: macrofossils

Preservation: concretion

Collection methods: surface (in situ),

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 38064: authorized by Robin Whatley, entered by Robin Whatley on 06.04.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

 Cotylosauria -
? Cotylosauria indet. tetrapod
fragments of skulls
 Gorgodontia -
Gorgonopsia indet. Seeley 1894 reptile
small skull (incomplete occ and parietal region)
 Therapsida -
Dicynodon sp. Owen 1845 dicynodont
various small forms, many fragments
Dadoxylon sp. Endlicher 1847