Topic summary
Protolamna
Protolamna is an extinct genus of large mackerel shark from the Cretaceous Period. Protolamna fossils indicate gigantism evolved early on in the history of lamniforms.
Topic summary
Protolamna is an extinct genus of large mackerel shark from the Cretaceous Period. Protolamna fossils indicate gigantism evolved early on in the history of lamniforms.