Smuts, W. J. 1988. A recently discovered clypeasteroid, Echinodiscus colchesterensis species novum, from the Alexandria Formation (Late Tertiary), South Africa. Palaeontologia Africana 26, 93-98.
176098
Smuts, W. J.
1988
A recently discovered clypeasteroid, Echinodiscus colchesterensis species novum, from the Alexandria Formation
Late Tertiary), South Africa. Palaeontologia Africana