†Hadrocheilus (Arcuatobeccus) Shimanskiy 1947 (mollusk)
Parent taxon: Hadrocheilus according to C. Teichert et al. 1964
Sister taxa: Hadrocheilus (Convexiterbeccus), Hadrocheilus (Dentatobeccus), Hadrocheilus (Globosobeccus), Hadrocheilus (Hadrocheilus)
Subtaxa: none
Ecology: fast-moving nektonic carnivore
Distribution: there are no occurrences of Hadrocheilus (Arcuatobeccus) in the database