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vol.7Micromammals in the Northern Cape Province of South Africa, past and presentThe Upper Cretaceous ammonite Grandidiericeras Collignon, 1961 (Puzosiinae), from the St Lucia Formation of KwaZulu-Natal, South Africa índice de autoresíndice de materiabúsqueda de artículos
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African Natural History

versión On-line ISSN 1816-8396


KLINGER, Herbert Christian  y  KENNEDY, William James. Hoplitoplacenticeras (H.) howarthi Collignon, 1970 (Cephalopoda: Ammonoidea) from KwaZulu-Natal, South Africa and Madagascar; intraspecific variation, dimorphism and affinities. Afr. nat. history (Online) [online]. 2011, vol.7, pp. 41-61. ISSN 1816-8396.

Additional specimens of the Campanian ammonite Hoplitoplacenticeras (H.) howarthi Collignon, 1970, as well as examination of Collignon's (1970) Madagascar! specimens of Hoplitoplacenticeras allow us to discuss the intraspecific variation, probable dimorphism and affinities of the species.

Palabras clave : ammonites; Hoplitoplacenticeras; Upper Campanian; intraspecific variation; dimorphism; affinities; Madagascar; KwaZulu-Natal; South Africa.

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