PBDB Collection

Winnaarsbaken (Triassic of South Africa)

Also known as Winaarsbaken, Winnaars Baken

Where: Eastern Cape, South Africa (30.9° S, 26.1° E: paleocoordinates 66.7° S, 13.9° W)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Cynognathus assemblage, subzone B zone, Burgersdorp Formation (Beaufort Group), Anisian (247.2 - 242.0 Ma)

• "Subzone B of the Cynognathus Assemblage Zone, Beaufort Group, Middle Triassic (Anisian)." (Modesto & Damiani, 2003). This biostratigraphic assignment corresponds to the Burgersdorp Formation (see Catuneanu et al., 2005, J. African Earth Sci. 43).

Environment/lithology: dry floodplain; siliciclastic sediments

• The Burgersdorp formation was "deposited on a semi-arid, slowly aggrading floodplain drained by sluggish meandering stream channels, which supplied water and sediment to the pedogenically-influenced overbank environments via crevasse splays (Hancox, 1998). Lakes and ponds developed on the floodplain [...]" (Catuneanu et al., 2005, J. African Earth Sci. 43).

Size class: macrofossils

Collected by J. W. Kitching; reposited in the BMNH, BPI

Primary reference: F. v. Huene. 1911. Über Erythrosuchus, Vertreter der neuen Reptil-Ordnung Pelycosimia. Geologische und Paläontologische Abhandlungen, Neue Folge 10(1):1-60 [R. Butler/R. Butler/R. Butler]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 92312: authorized by Johannes Mueller, entered by Torsten Liebrecht on 05.11.2009, edited by Richard Butler

Creative Commons license: CC BY (attribution)

Taxonomic list

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Osteichthyes
Therapsida -	Diademodon tetragonus⁵ Diademodon tetragonus⁵ Seeley 1894 cynodont
Therapsida - Trirachodontidae	Trirachodon berryi⁵ Trirachodon berryi⁵ Seeley 1895 cynodont BP/1/239, skull
Therapsida -	Cynognathus crateronotus⁵ Cynognathus crateronotus⁵ Seeley 1895 cynodont
Dicynodontia -	"Kannemeyeria simocephalus" = Kannemeyeria simocephala⁵ "Kannemeyeria simocephalus" = Kannemeyeria simocephala⁵ Weithofer 1888 dicynodont Two skulls
Therocephalia - Bauriidae	Bauria cynops¹ Bauria cynops¹ Broom 1909 therapsid AMNH 5622, skull and partial postcranium
Reptilia
Parareptilia - Procolophonidae	"Thelegnathus contritus n. sp." = Thelephon contritus³ "Thelegnathus contritus n. sp." = Thelephon contritus³ Gow 1977 parareptile BP/1/3512 (type)
Diapsida - Erythrosuchidae	Erythrosuchus africanus Erythrosuchus africanus Broom 1905 archosauromorph BMNH R 3592, incomplete but extensive skull, mandible, and postcranial material of single individual, with at least some metacarpals from a second smaller individual. BPI 2096, right pes. BMNH R8667, five mid-dorsal vertebrae
Amphibia
Temnospondyli - Mastodonsauridae	"Xenotosuchus africanus" = Xenotosuchus africanus⁴, "? Wellesaurus africanus" = Xenotosuchus africanus² "Xenotosuchus africanus" = Xenotosuchus africanus⁴ Broom 1909 tetrapod SAM-PK-3008, partial skull "? Wellesaurus africanus" = Xenotosuchus africanus² Broom 1909 tetrapod UMZC T135, partial mandible

¹Brink 1963; ²Damiani and Rubidge 2003; ³Gow 1977; ⁴Haughton 1925; ⁵Kitching 1977