Also known as Cynognathus holotype; Lady Frere area

Where: Eastern Cape, South Africa (31.7° S, 27.2° E: paleocoordinates 67.9° S, 13.8° W)

• coordinate based on nearby landmark

• local area-level geographic resolution

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

• Original description did not provide details of the stratigraphic horizon; however, recent work has demonstrated that Cynognathus is the diagnostic fossil of the Cynognathus Assemblage Zone (Olenekian-Anisian), which is divided into three subzones (e.g. Abdala et al. 2005. JVP 25). Bolotridon is known only from subzone B (Abdala & Ribeiro 2010: PPP 286: 202), as are Cynognathus crateronotus and Diademodon tetragonus so this site likely is of subzone B, early Anisian age.

• member-level stratigraphic resolution

Environment/lithology: terrestrial; concretionary, red lithology not reported

Size class: macrofossils

Collected by Seeley; reposited in the BMNH, BPI

Collection methods: mechanical,

Primary reference: H. G. Seeley. 1895. Researches on the Structure, Organization, and Classification of the Fossil Reptilia. Part IX, Section 5. On the Skeleton in New Cynodontia from the Karroo Rocks. Philosophical Transactions of the Royal Society of London B 186:59-148 [R. Butler/R. Butler]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 105295: authorized by Richard Butler, entered by Richard Butler on 18.02.2011

Creative Commons license: CC BY (attribution)