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3 2023

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The ammonite subgenus Pervinquieria (Deiradoceras) van Hoepen, 1931 from the Upper Albian of KwaZulu-Natal, South Africa. Part II

Kennedy William James, Klinger Herbert Christian

Acta Geologica Polonica

2023

Vol. 73, no. 4

571–-586

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 ammonite subgenus Pervinquieria (Deiradoceras) van Hoepen, 1931 from the Upper Albian of KwaZulu-Natal, South Africa. Part I

Kennedy William James, Klinger Herbert Christian

Acta Geologica Polonica

2023

Vol. 73, no. 4

549--569

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 ammonite genera Dipoloceras, Diplasioceras, Euspectroceras, and Rhytidoceras from the Upper Albian of KwaZulu-Natal, South Africa

Kennedy William James, Klinger Herbert Christian

Acta Geologica Polonica

2023

Vol. 73, no. 4

505–-548

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.