ANDERSON, M.E. & LONG, J.A. & GESS, R.W. & HILLER, N. (1999)
An unusual new fossil shark (Pisces: Chondrichthyes) from the Late Devonian of South Africa. Records of the Western Australian Museum, Supplement, 57: 151–156
COATES, M.I. & GESS, R.W. (2007)
A new reconstruction of Onychoselache traquairi, comments on early chondrichthyan pectoral girdles and hybodontiform phylogeny. Palaeontology, 50 (6): 1421–1446
DOI: 10.1111/j.1475-4983.2007.00719.x
GESS, R.W. (2011)
High latitude Gondwanan famennian biodiversity patterns : evidence from the South African Witpoort Formation (Cape Supergroup, Witteberg Group). unpublished thesis, Faculty of Science, University of the Witwatersrand, Johannesburg 2011
GESS, R.W. & COATES, M.I. (2015)
High-latitude Chondrichthyans from the Late Devonian (Famennian) Witpoort formation of South Africa. Paläontologische Zeitschrift, 89 (2): 147–169
DOI: 10.1007/s12542-014-0221-9