Cephalopoda - Ammonitida - Brancoceratidae

Alternative combinations: Ammonites varicosus, Brancoceras varicosum

Full reference: J. d. C. Sowerby. 1824. No. LXXVIII of the mineral conchology of Great Britain; or colored figures and descriptions of those remains of testaceous animals or shells, which have been preserved at various times and depths in the Earth. The mineral conchology of Great Britain 5:73-78

Belongs to Hysteroceras according to R. A. Henderson 1990

Sister taxa: Hysteroceras andinum, Hysteroceras antipodeum, Hysteroceras binum, Hysteroceras bucklandi, Hysteroceras carinatum, Hysteroceras choffati, Hysteroceras falcicostatum, Hysteroceras intermedium, Hysteroceras orbignyi, Hysteroceras propinquum, Hysteroceras semileve, Hysteroceras subbinum, Petinoceras recuperator, Askoloboceras fastigatum, Terascosceras cariniferum, Komeceras acuticostatum

Ecology: fast-moving nektonic carnivore