Ringsfontein (Permian to of South Africa)

Where: Western Cape, South Africa (32.0° S, 23.8° E: paleocoordinates 62.4° S, 28.6° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Dicynodon Assemblage 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 according to recent radioisotopic dates

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; green, calcareous mudstone

• "All the specimens are preserved in fine-grained green mudstone which may or may not form a nodule surrounding the specimen." (Gow, 1972).

Size class: macrofossils

Collected by J. Kitching in 1956; reposited in the BPI

Collection methods: mechanical,

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 80178: authorized by Johannes Mueller, entered by Jana Dummasch on 08.04.2008, edited by Torsten Liebrecht, Richard Butler, Emma Dunne and 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.
Amphibia
 Temnospondyli - Rhinesuchidae
"Muchocephalus muchos n. gen. n. sp." = Rhinesuchus whaitsi4
"Muchocephalus muchos n. gen. n. sp." = Rhinesuchus whaitsi4 Broom 1908 tetrapod
BP/1/350
 Temnospondyli - Lydekkerinidae
Lydekkerina kitchingi n. gen. n. sp.3
Lydekkerina kitchingi n. gen. n. sp.3 Broom 1950 tetrapod
BP/1/214 (Holotype) complete skull slightly dorso-ventally compressed without mandible associated. BP/1/215 skull with mandible in articulation
Reptilia
 Parareptilia - Millerettidae
Milleretta rubidgei Broom 1938 parareptile
BP/1/2610
? Millerosaurus sp. Broom 1948 parareptile
BP/1/2612
Osteichthyes
 Therocephalia - Whaitsiidae
Theriognathus microps1 Owen 1876 therapsid
BP/1/1567
 Therapsida - Gorgonopidae
"Prorubidgea brinki n. sp." = Aelurognathus tigriceps2
"Prorubidgea brinki n. sp." = Aelurognathus tigriceps2 Broom and Haughton 1913 therapsid
BP/1/1566, complete skull and lower jaw