Cephalopoda - Ceratitida - Beyrichitidae

Full reference: H. Bucher. 1992. Ammonoids of the Hyatti Zone and the Anisian transgression in the Star Peak Group, Northwestern Nevada, USA. Palaeontographica Abteilung A 233:137-166

Parent taxon: Beyrichitinae according to H. Bucher 1992

Sister taxa: Aghdarbandites, Anagymnotoceras, Arctogymnites, Beyrichites, Billingsites, Chiratites, Dixieceras, Eudiscoceras, Favreticeras, Frechites, Frechitoides, Gangadharites, Guexites, Gymnotoceras, Kocaelia, Nicomedites, Parafrechites, Phillipites, Pleurofrechites, Pseudohollandites, Salterites, Schreyerites, Semibeyrichites, Serpianites, Trachyornites, Tuchodiceras

Subtaxa: Nicholsites moderatus, Nicholsites newpassensis, Nicholsites parisi, Nicholsites tozeri

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Type: Nicholsites newpassensis

Ecology: nektonic carnivore