†Acanthidium Lowe 1839 (shark)
Chondrichthyes - Squaliformes - Squalidae
PaleoDB taxon number: 354455
Parent taxon: Squalidae according to D. S. Jordan 1963
Sister taxa: Acanthias, Acanthorhinus, Atractophorus, Centrophoroides, Centroscyllium, Dalatiinae, Entoxychirus, Galeocerdo, Lepidorhinus, Machephilus, Megasqualus, Nasisqualus, Paracentroscyllium, Protosqualus, Scymnodon, Spinax, Squalinae, Squalus, Trigonognathus, Zameus
Subtaxa: none
Ecology: nektonic carnivore