PBDB Collection

Willodene Farm, Locality 16 (Permian of South Africa)

Also known as Beato 238

Where: Western Cape, South Africa (32.2° S, 21.6° E: paleocoordinates 60.5° S, 31.2° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Tropidostoma Assemblage other zone, Hoedemaker Member (Teekloof Formation), Wuchiapingian (259.9 - 254.2 Ma)

• "[...] Hoedemaker Member of the Teekloof Formation [...] upper half of the 180-m-thick Tropidostoma Assemblage Zone" (Botha et al. 2007); In the stratigraphic chart in fig. 2 (Botha et al., 2007 p. 480) the Hoedemaker Member is placed within the Wuchiapingian. In Sidor & Smith (2007) the Hoedemaker is said to be Capitanian in age. According to Catuneanu et al. (2005, J. Afr. Earth Sci., 43) the Hoedemaker is Late Capitanian to Early/Middle Wuchiapingian. Recent radioisotopic dates constrain the Tropidostoma AZ to Wuchiapingian.

• group of beds-level stratigraphic resolution

Environment/lithology: crevasse splay; lenticular, red mudstone and gray siltstone

• The massive siltstones [...] and are interpreted as proximal floodplain deposits laid down at the base of the meanderbelt slope. The fissile mudstone interlayer in which the study specimen was found is interpreted as a small pond deposit within the splay sequence." (Botha et al. 2007)

• " [...] a 0.25-m-thick lens of fissile, dark purple, mudstone on a parting between two 1-m-thick beds of massive grey siltstone with purple mottles.

•The massive siltstones contain scattered oblate pedogenic carbonate nodules [...] " (Botha et al. 2007)

Size class: macrofossils

Primary reference: J. Botha, F. Abdala, and R. M. H. Smith. 2007. The oldest cynodont: new clues on the origin and early diversification of the Cynodontia. Zoological Journal of the Linnean Society 149(3):477-492 [J. Mueller/T. Liebrecht]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 86303: authorized by Johannes Mueller, entered by Torsten Liebrecht on 28.01.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names

Osteichthyes
Therapsida - Charassognathidae	Charassognathus gracilis n. gen. n. sp. Charassognathus gracilis n. gen. n. sp. Botha et al. 2007 cynodont SAM-PK-K10369 (type)