Grootdriefontein (Cistecephalus Assemblage Zone) (Permian of South Africa)

Also known as Groot Driefontein

Where: Western Cape, South Africa (31.9° S, 23.9° E: paleocoordinates 62.1° S, 29.1° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Cistecephalus Assemblage Zone zone, Teekloof Formation (Beaufort Group), Wuchiapingian (259.9 - 254.2 Ma)

• Direct maximum date for the Dicynodon Aseemblage Zone from Rubidge et al., 2013

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Collected by J. Kitching in 1940

• 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 174736: authorized by Richard Butler, entered by Juan Benito Moreno on 26.11.2015, edited by Bethany Allen

Creative Commons license: CC BY (attribution)

Taxonomic list

• Gow (1972) lists all specimens of Milleretta rubidgei, except the type, as "Milleretta" without a specific epithet. Since Mileretta is a monospecific genus all specimens listed as "Milleretta" by Gow (1972) are listed as "Milleretta rubidgei" in the taxomomic list.
Osteichthyes
 Anomodontia - Cryptodontidae
Oudenodon bainii, "Platycyclops rubidgei n. sp." = Rhachiocephalus magnus
Oudenodon bainii Owen 1859 therapsid
"Platycyclops rubidgei n. sp." = Rhachiocephalus magnus Owen 1876 therapsid
Skull
 Dicynodontia -
 Dicynodontia - Cistecephalidae
Cistecephalus microrhinus Owen 1876 dicynodont
Nine skulls
 Dicynodontia -
"Dicynodon macrodon n. sp." = Dinanomodon gilli1
"Dicynodon macrodon n. sp." = Dinanomodon gilli1 Broom 1932 dicynodont
RC 22, a laterally crushed skull missing the temporal arches
 Therocephalia - Ictidosuchidae
 Therapsida - Gorgonopidae
"Scylacocephalus watermeyeri n. gen. n. sp." = Aelurosaurus watermeyeri1
"Scylacocephalus watermeyeri n. gen. n. sp." = Aelurosaurus watermeyeri1 Broom 1940 therapsid
RC 21, skull
Reptilia
 Parareptilia - Millerettidae
Milleretta rubidgei2 Broom 1938 parareptile
RC 14b, Skull