Rhenosterkloof, RK-3 (Triassic of Namibia)

Where: Namibia (21.1° S, 16.4° E: paleocoordinates 53.6° S, 11.7° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Cynognathus subzone B other zone, Upper Member (Omingonde Formation), Anisian (247.2 - 242.0 Ma)

• "Based on the co-occurrence of Kannemeyeria and Erythrosuchus in subzone B of the Cynognathus Assemblage Zone, the Omingonde Formation may be broadly assigned an Anisian age." (Damiani et al. 2007. Palaeontology 50: 1531-1546)

•Locality RK-3 is stratigraphically low in the upper Omingonde Formation (see Abdala & Smith 2009: fig. 11). Abdala & Smith (2009) suggest the possibility of two different faunas in the upper Omingonde Formation; an older one corresponding to Cynognathus Subzone B and the upper possibly to Cynognathus Subzone C. On the basis of the presence of Chiniquodon in the upper fauna, Abdala & Smith (2009) tentatively suggested that the Omingonde could extend into the early Ladinian. This locality would therefore be early Anisian in age.

• bed-level stratigraphic resolution

Environment/lithology: dry floodplain; sandstone

Size class: macrofossils

Collected by Smith, Swart

• GSN: Geological Survey of Namibia, Windhoek

Primary reference: R. M. H. Smith and R. Swart. 2002. Changing fluvial environments and vertebrate taphonomy in response to climatic drying in a mid-Triassic rift valley fill: the Omingonde Formation (Karoo Supergroup) of central Namibia. Palaios 17:249-267 [R. Butler/R. Butler]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 99548: authorized by Richard Butler, entered by Richard Butler on 15.11.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

Osteichthyes
 Therapsida -
Diademodon sp. Seeley 1895 cynodont
GSM RK-3, skull and lower jaw