. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. 94 ANNALS OF THE SOUTH AFRICAN MUSEUM decline at the end of Campanian I was to a large extent a phylogenetic phenomenon. The genus is represented in the Maastrichtian by one record only: two specimens of H. ftssilis at locality 20 (Mfolozi River), but the closeness of H. radiatus (Eocene, borehole JC-1, Dingle 1976) to H. fissilis indicates that the latter species, or a development of it, survived locally through the rest of Maastrichtian and Palaeocene times.. Fig. 45. Distribution of Haughtonileber
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. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. 94 ANNALS OF THE SOUTH AFRICAN MUSEUM decline at the end of Campanian I was to a large extent a phylogenetic phenomenon. The genus is represented in the Maastrichtian by one record only: two specimens of H. ftssilis at locality 20 (Mfolozi River), but the closeness of H. radiatus (Eocene, borehole JC-1, Dingle 1976) to H. fissilis indicates that the latter species, or a development of it, survived locally through the rest of Maastrichtian and Palaeocene times.. Fig. 45. Distribution of Haughtonileberis in Campanian-Maastrichtian strata of Zululand and Agulhas Bank. A. Total number of valves of H. haughtoni. B. Total number of valves of H. fissilis. C. Total number of valves of H. vanhoepeni. D. Total number of valves of H. nibelaensis. E. Haughtonileberis as percentage of total ostracod population. Haughtonileberis haughtoni Dingle, 1969 Fig. 48E Haughtonileberis haughtoni Dingle, 1969: 372-373, fig. 15; 1980: 39, fig. 21A-E. Remarks Of the two morphotypes recognized by Dingle (1980), only the elongate form occurs in the Campanian I section of the Richards Bay BH-9 borehole.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. South African Museum. Cape Town : The Museum