†Hysteroceras binum angusteumbilicata Haas 1942 (ammonite)
Cephalopoda - Ammonitida - Brancoceratidae
Full reference: O. Haas. 1942. The Vernay Collection of Cretaceous (Albian) ammonites from Angola. Bulletin of the American Museum of Natural History 81(1):1-224
Belongs to Hysteroceras binum according to O. Haas 1942
Sister taxon: Hysteroceras binum lobitoensis
Ecology: fast-moving nektonic carnivore
Distribution: there are no occurrences of Hysteroceras binum angusteumbilicata in the database