Thrinaxodon and Broomistega
Early Triassic
Harrismith Member, Normandien Formation
Oliviershoek Pass, KwaZulu Natal Province, Karoo Basin
South Africa

Professionally hand-painted 290mm (11.5 inch) CAST of the famous specimen in the Evolutionary Studies Institute (University of the Witwatersrand, Johannesburg, South Africa). Looks almost real!

The original paper describing this incredible specimen is here (PDF): Synchrotron Reveals Early Triassic Odd Couple

News article about the find: Strange bedfellows: Two creatures shared ancient burrow