Elasmobranchs (sharks and their relatives). These included some, like Psammodus, with crushing pavement-like teeth adapted for grinding the shells of...

Elasmobranchs (sharks and their relatives). These included some, like Psammodus, with crushing pavement-like teeth adapted for grinding the shells of...

†Psammodus Agassiz, 1838 †Psammodus cinctus Agassiz, 1843 †Psammodus contortus Anonymous author(s) †Psammodus salopiensis Woodward, 1889 †Psammodus trapeziformis...

†Hybodontiformes Family: †Acrodontidae Genus: †Palaeobates Meyer, 1849 Type species †Psammodus angustissimus Agassiz in Alberti, 1834 Other species †Palaeobates polaris...

†Protocycloceras †Protocycloceras odenvillense †Protoniella †Protovirgularia †Psammodus †Pseudagnostus †Pseudagnostus contracta †Pseudomonotis †Pterocrinus †Pterotocrinus...

subcircularis †Prototreta trapeza †Psalikilus †Psalikilus paraspinosum †Psammodus †Pseudagnostus †Pseudoclelandia †Pseudodicellomus †Pseudogastrioceras...