Euparkeria site, Aliwal North (Triassic of South Africa)

Also known as "Krielfontein", "Quarry Commonage"

Where: Eastern Cape, South Africa (30.7° S, 26.7° E: paleocoordinates 66.9° S, 12.6° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Cynognathus Assemblage zone, Burgersdorp Formation (Beaufort Group), Anisian (247.2 - 242.0 Ma)

• "Cynognathus assemblage zone" (Ewer, 1965);

•"Middle zone of Cynognathus Assemblage Zone (Hancox et al. 1995) correlating with the upper two-thirds of the Burgersdorp Formation (Tarkastad Subgroup; Beaufort Group) according to Keyser & Smith (1979)" (Dilkes, 1998).

•The middle Cynognathus AZ in the Aliwal North District is entirely within the Anisian Stage of the Middle Triassic (Catuneanu et al., 2005 J. Afr. Earth Sci., 43).

• group of beds-level stratigraphic resolution

Environment/lithology: dry floodplain; sandstone

• The Burgersdorp formation was "deposited on a semi-arid, slowly aggrading floodplain drained by sluggish meandering stream channels, which supplied water and sediment to the pedogenically-influenced overbank environments via crevasse splays (Hancox, 1998). Lakes and ponds developed on the floodplain [...]" (Catuneanu et al., 2005, J. African Earth Sci. 43).

Size class: macrofossils

Collected by A. Brown, A. W. Higgins

Collection methods: surface (in situ),

• SAM = South African Museum, Pretoria, South Africa

•UMCZ = University Museum of Zoology, Cambridge, United Kingdom

•DMSW = D.M.S. Watson collection

Primary reference: R. Broom. 1913. On the South African pseudosuchian Euparkeria and allied genera. Proceedings of the Zoological Society of London 1913:619-633 [R. Butler/R. Butler]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 85943: authorized by Johannes Mueller, entered by Torsten Liebrecht on 20.01.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Rhynchosauria -
Mesosuchus browni n. gen. n. sp.1
Mesosuchus browni n. gen. n. sp.1 Watson 1912 rhynchosaur
SAM 5882 (type), 6046, 6536, 7416
 Diapsida -
"Euparkeria capensis n. gen. n. sp." = Euparkeria capensis2, "Browniella africana n. gen. n. sp." = Euparkeria capensis
"Euparkeria capensis n. gen. n. sp." = Euparkeria capensis2 Broom 1913 archosauromorph
SAM 5867 (type, "Haughtons specimen 1"), 6047A ("Haughtons specimen 2"), 6048 (""Haughtons specimen 3"), 6049 ("Haughtons specimen 4"), 6050 ("Haughtons specimen 6"), 7696, 7698, 7700, 7702, 7713, 13664 (the specimen mentioned by Haughton (1922) at the bottom of p. 83), 13665 ("Haughtons specimen 5"), 13667; UMCZ T692 (formerly DMSW R527); repository information on the last specimen is from Senter (2009, Palaeontology 46(3))
"Browniella africana n. gen. n. sp." = Euparkeria capensis Broom 1913 archosauromorph
6047B (type, "Haughtons specimen 2")