|Similar Hybodontiformes, Hybodus, Acrodus, Elasmobranchii, Asteracanthus|
Lissodus is an extinct genus of freshwater shark. It lived from the Early Triassic to the Albian period of the Cretaceous. It was about 15 centimetres (5.9 in) long and had flat teeth that it used for eating clams.
(Text) CC BY-SA