1989 in paleontology

Conodonts

German paleontologist and stratigrapher Heinz Walter Kozur described the conodont genus Mesogondolella.

Sauropterygians

Plesiosaurs

Plesiosaur research

Plesiosaur gastroliths documented.

Archosauriformes

Archosauromorphs

Non avian dinosaurs

Data courtesy of George Olshevsky's dinosaur genera list.