Zone: a reworked palaeosol in the Lower Jurassic Elliot Formation, KarooSupergroup, South Africa. [2010-03-08]. (原始内容存档于2019-02-18). Smith, R.; Kitching
2005, Therapsids from the Permian Chiweta Beds and the age of the KarooSupergroup in Malawi. Palaeontologia Electronica. Vol. 8, #1, pp. 28A: 21-23 online[失效連結]
Kitching, J. W.; Raath, M. A. Fossils from the Elliot and Clarens Formations (Karoo Sequence) of the Northeastern Cape, Orange Free State and Lesotho, and a