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 unpublished thesis, Faculty of Science, University of the Witwatersrand, Johannesburg 2011
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
The Paleozoic ichthyofauna of the Amazonas and Parnaíba basins, Brazil. Journal of South American Earth Sciences, 82: 122-132
DOI: 10.1016/j.jsames.2018.01.001
