Lissodus is an extinct genus of freshwater shark. It lived from the Mississippian subperiod of the Carboniferous period to the Albian age of the Cretaceous. It was about long and had flat teeth that it used for eating clams.
Known species:
Lissodus africanus
Lissodus angulatus
Lissodus bartheli
Lissodus cassangensis
Lissodus cristatus
Lissodus guenneguesi
Lissodus hasleensis
Lissodus johnsonorum
Lissodus leiodus
Lissodus leiopleurus
Lissodus lepagei
Lissodus levis
Lissodus minimus
Lissodus wardi
Lissodus xiushuiensis
Paleoecology
Triassic specimen of Lissodus from Angola was found in sediments of a freshwater lake that probably dried up during the dry seasons. Other fishes from the same locality are Schaefferius (previously known as "Marquesia"), two species of Perleidus, neopterygian Angolaichthys, and a lungfish Microceratodus.