The type, figured and cited material of thirteen species assigned by van Hoepen (1942, 1946) to his genus Ophryoceras, a synonym of Pervinquieria (Pervinquieria) Böhm, 1910, are described and illustrated, and shown to be a single variable Late Albian ammonite species. Pervinquieria salebrosa van Hoepen, 1942 is a further synonym. Van Hoepen (1946) referred a series of fragments to Ophryoceras sp. under four separate entries. We have not seen this material which we refer to as ?Ophryoceras spp. (a)–(d); they may be further synonyms of salebrosa.
In this contribution we complete the revision of species we refer to Pervinquieria (Deiradoceras) van Hoepen, 1931, focusing on those assigned by him to his genera Cechenoceras and Mimeloceras.
The cosmopolitan Late Albian ammonite subgenus Pervinquieria (Deiradoceras) van Hoepen, 1931, and its synonyms Cechenoceras van Hoepen, 1941 and Mimeloceras van Hoepen, 1944, originally based on material from northern KwaZulu-Natal, are reviewed. The type material of the type species, Subschloenbachia prerostrata Spath, 1921, is revised and reillustrated, as are its numerous synonyms.
The lower Upper Albian ammonite genus Dipoloceras Hyatt, 1900 (subfamily Mojsisovicsiinae Hyatt, 1903) is represented in KwaZulu-Natal by the type species, D. cristatum (Brongniart, 1822), marker species for the base of the Upper Albian Substage. Rhytidoceras van Hoepen, 1931 (of which Drepanoceras van Hoepen, 1931, non Stein 1878 and Ricnoceras van Hoepen, 1941, are synonyms), previously regarded as subgenera of Dipoloceras, are afforded generic status as are its supposed synonyms Diplasioceras van Hoepen, 1946a, and Euspectroceras van Hoepen, 1946a. The type species of these genera are revised, and assigned to the subfamily Pervinquierinae Spath, 1926.
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