Willodene Farm, Locality 12 (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)

• "[...] middle of the Tropidostoma AZ [...] middle of the locally named Hoedemaker Member of the Teekloof Formation (Smith and Keyser, 1995), which we estimate to be late Middle Permian in age" (Sidor & Smith, 2007)

•In Botha et al. (2007) the Hoedemaker Member is said to be entirely Wuchiapingian 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; gray, green siltstone and mudstone

• "These sediments occur in 5–10 m thick coarsening-upward sequences interpreted as prograding crevasse splay sequences. They were laid down by repeated overbank flood events emanating from the channel banks and ponding in the lowland flood basins." (Sidor & Smith, 2007)
• "Most of the vertebrate fossils are found in the thick greenishgrey massively bedded siltstone with minor mudstone intercalations that occur between the main channel sandstones. These sediments occur in 5–10 m thick coarsening-upward sequences interpreted as prograding crevasse splay sequences." (Sidor & Smith, 2007)

Size class: macrofossils

Collected in 1985, 1986

Primary reference: C. A. Sidor and R. M. H. Smith. 2007. A Second Burnetiamorph Therapsid from the Permian Teekloof Formation of South Africa and its Associated Fauna. Journal of Vertebrate Paleontology 27(2):420-430 [J. Mueller/T. Liebrecht]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 86276: authorized by Johannes Mueller, entered by Torsten Liebrecht on 27.01.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

• The taxa list is not from the paper (Sidor & Smith, 2007) proper but from the appendix, published online only

•[http://dx.doi.org./10.1671%2F420_2006-0141SIDORWeb_Data-Appendix1]

Osteichthyes
 Therapsida -
Lophorhinus willodenensis n. gen. n. sp. Sidor and Smith 2007 therapsid
SAM-PK-K6655 (type)
 Dicynodontia -
Dicynodontia indet. Owen 1859 dicynodont
SAM-PK-K6664
 Dicynodontia - Pylaecephalidae
Diictodon sp. Broom 1913 dicynodont
SAM-PK-K6652 to K6654, K6656 to K6658, K6659 to K6663, K6665 to K6669
 Anomodontia - Cryptodontidae
"Tropidostoma microtrema" = Tropidostoma dubium
"Tropidostoma microtrema" = Tropidostoma dubium Owen 1876 therapsid
SAM-PK-K6657
 Therocephalia - Ictidosuchidae
"Ictidosuchoides sp." = Ictidosuchops
"Ictidosuchoides sp." = Ictidosuchops Broom 1938 therapsid
SAM-PK-K6670