The ammonite subfamily Labeceratinae Spath, 1925: systematics, phylogeny, dimorphism and distribution (with a description of a new species)Published in Annals of the South African Museum, in 1989, in volume 98, issue 7, pages 189-219First record of an extant, sighted shallow-water species of the genus Poseidonamicus Benson (Ostracoda) from the continental margin of south-western AfricaPublished in Annals of the South African Museum, in 1989, in volume 98, issue 11, pages 437-457
First record of an extant, sighted shallow-water species of the genus Poseidonamicus Benson (Ostracoda) from the continental margin of south-western AfricaPublished in Annals of the South African Museum, in 1989, in volume 98, issue 11, pages 437-457