Acrorhizodus
Acrorhizodus is an extinct genus of hybodont chondrichthyan currently containing only the species: Acrorhizodus khoratensis. It is known from the Albian to Aptian aged Khok Kruat formation of the Khok Pha Suam locality near the town of Sri [Muang Mai, Thailand]. It displays a mix of features which sets it apart from all hybodont families currently known.