English Mesoteuthis Cited by user Chris the Paleontologist on 19 Feb 2012 Mesoteuthis is a genus of belemnite, an extinct group of cephalopods.
English Cylindroteuthis Cited by user Chris the Paleontologist on 19 Feb 2012 Cylindroteuthis is a genus of belemnite that lived from the Early Jurassic to the Early Cretaceous.