Wellwood (Dicynodon Assemblage Zone) (Permian to of South Africa)

Where: Eastern Cape, South Africa (32.0° S, 24.6° E: paleocoordinates 63.0° S, 28.0° W)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Dicynodon Assemblage Zone zone, Balfour Formation (Beaufort Group), Wuchiapingian to Wuchiapingian (259.9 - 252.2 Ma)

• It is said that the fossils come from the Daptocephalus zone (Gow, 1972) which is equivalent to the Dicynodon Assemblage Zone. Geographic and stratigraphic data suggest that the locality is in the Balfour Formation of the Beaufort Group (see Catuneanu et al., 2005, J. Afr. Earth Sci., 43, figs. 24, 25). The Dicynodon AZ is late Wuchiapingian to Changhsingian based on radioisotopic data (Rubidge et al. 2013, Geology)

•Direct Maximum date for Dicynodon Assemnlage Zone from Rubidge et al., 2013

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; siliciclastic sediments

Size class: macrofossils

Collected by S.H. Rubidge in 1938

• R.C. = "S. H. Rubidge collection housed on the farm Wellwood near Graff Reinet" (Gow, 1972)

Primary reference: J. W. Kitching. 1977. The distribution of the Karroo vertebrate fauna. Memoirs of the Bernard Price Institute for Palaeontological Research 1:1-131 [H. Sims/J. Camp]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 80226: authorized by Johannes Mueller, entered by Jana Dummasch on 09.04.2008, edited by Richard Butler and Juan Benito Moreno

Creative Commons license: CC BY (attribution)

Taxonomic list

Osteichthyes
 Therapsida - Gorgonopidae
"Cyniscops rubidgei n. sp." = Cyonosaurus rubidgei5, "Galerhinus rubidgei n. sp." = Paragalerhinus rubidgei5
"Cyniscops rubidgei n. sp." = Cyonosaurus rubidgei5 Broom 1947 therapsid
RC 74 (type), badly preserved skull
"Galerhinus rubidgei n. sp." = Paragalerhinus rubidgei5 Broom 1936 therapsid
RC 2, partial skull
 Therocephalia - Ictidosuchidae
Ictidosuchoides rubidgei Broom 1936 therapsid
 Therocephalia - Akidnognathidae
Promoschorhynchus platyrhinus Brink 1954 therapsid
 Therocephalia - Whaitsiidae
"Notaelurops paucidens n. gen. n. sp." = Theriognathus microps1, "Notosollasia longiceps" = Theriognathus microps
"Notaelurops paucidens n. gen. n. sp." = Theriognathus microps1 Owen 1876 therapsid
TM skull
"Notosollasia longiceps" = Theriognathus microps Owen 1876 therapsid
 Therocephalia - Scaloposauridae
Pelictosuchus paucidens Broom 1940 therapsid
 Therapsida - Galesauridae
"Nanictosaurus rubidgei n. sp." = Nanictosaurus kitchingi2, "Mygalesuchus peggyae n. gen. n. sp." = Cynosaurus suppostus
"Nanictosaurus rubidgei n. sp." = Nanictosaurus kitchingi2 Broom 1936 cynodont
RC 47, skull (holotype), RC 133
"Mygalesuchus peggyae n. gen. n. sp." = Cynosaurus suppostus Owen 1876 cynodont
 Anomodontia - Cryptodontidae
"Dicynodon sidneyi n. sp." = Pelanomodon moschops2
"Dicynodon sidneyi n. sp." = Pelanomodon moschops2 Broom 1913 therapsid
RC 44, a laterally crushed partial skull
 Dicynodontia -
Reptilia
 Parareptilia - Millerettidae
Millerinoides acutirostris n. gen. n. sp.3 Broom 1940 parareptile
RC 15 (type)
 Eosuchia - Younginidae
Youngina capensis4 Broom 1914 diapsid
RC 625, 626