Doornplaas (Permian to of South Africa)

Also known as Doornplaats; Rust

Where: Eastern Cape, South Africa (32.1° S, 24.3° E: paleocoordinates 62.9° S, 28.4° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Dicynodon Assemblage other 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; Evans & van den Heever, 1987) 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 or Daptocephalus Assemblage Zone is late Wuchiapingian to Changhsingian on the basis of radioisotopic evidence (Rubidge et al. 2013, Geology)

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; siliciclastic sediments

Size class: macrofossils

Collected by J. Kitching, A. T. Bremner in 1962 and later; reposited in the BPI

Collection methods: acetic,

• SAM = Iziko South African Museum, Cape Town

Primary reference: C. E. Gow. 1972. The osteology and relationships of the Millerettidae (Reptilia: Cotylosauria). Journal of Zoology, London 167:219-264 [J. Mueller/J. Dummasch]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 80216: authorized by Johannes Mueller, entered by Jana Dummasch on 09.04.2008, edited by Torsten Liebrecht, Richard Butler and Juan Benito Moreno

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.

•Reisz et al. (2000, S. Afr. J. Sci., 96) say that Doornplaas, besides the type of Acanthotoposaurus, yielded further specimens of Youngina).

Reptilia
 Eosuchia - Younginidae
"Youngina capensis" = Youngina capensis4, "Acanthotoposaurus bremneri n. gen. n. sp." = Youngina capensis3
"Youngina capensis" = Youngina capensis4 Broom 1914 diapsid
BP/1/2859, skull and skeleton
"Acanthotoposaurus bremneri n. gen. n. sp." = Youngina capensis3 Broom 1914 diapsid
SAM K6888 (type)
 Parareptilia - Millerettidae
Milleretta rubidgei Broom 1938 parareptile
BP/1/3818, 3821; No. 37 in Sigogneau Collection
 Parareptilia - Owenettidae
Owenetta cf. rubidgei5 Broom 1939 parareptile
Osteichthyes
 Therocephalia - Whaitsiidae
"Notosollasia longiceps" = Theriognathus microps1
"Notosollasia longiceps" = Theriognathus microps1 Owen 1876 therapsid
BP/1/139, BP/1/844, SAM-PK-K10429, UMZC T900
 Therocephalia - Ictidosuchidae
Ictidosuchops intermedius5 Broom 1938 therapsid
 Dicynodontia -
Daptocephalus leoniceps5 Owen dicynodont
 Dicynodontia - Pylaecephalidae
"Dicynodon nanus" = Diictodon feliceps5, "Dicynodon ictidops" = Diictodon feliceps5
"Dicynodon nanus" = Diictodon feliceps5 Owen 1876 dicynodont
"Dicynodon ictidops" = Diictodon feliceps5 Owen 1876 dicynodont
 Anomodontia - Cryptodontidae
Aulacephalodon bainii5, "Dicynodon glaucops n. sp." = Oudenodon bainii2
Aulacephalodon bainii5 Owen 1845 therapsid
"Dicynodon glaucops n. sp." = Oudenodon bainii2 Owen 1859 therapsid
RC 84, a partial skull
 Therapsida - Gorgonopidae
Cyonosaurus longiceps5 Olson 1937 therapsid
Cyonosaurus kitchingi6 Broom 1948 therapsid
SAM-PK-8790, flattened and incomplete skull
 Therapsida - Procynosuchidae
"Leavachia cf. duvenhagei" = Procynosuchus delaharpeae5
"Leavachia cf. duvenhagei" = Procynosuchus delaharpeae5 Broom 1937 cynodont