English Cladoselache Cited by user Fanboyphilosopher on 05 Mar 2022 Cladoselache is an extinct genus of shark-like chondrichthyan from the Late Devonian (Famennian) of North America.
English Kawichthys Cited by user Citation bot on 07 Sep 2021 Kawichthys was an extinct genus of symmoriiform cartilaginous fish from Upper Pennsylvanian (Late Virgilian stage) deposits of Kansas, United States.
English Orthacanthus Cited by user Aselee on 04 Mar 2020 About 260 million years ago, Orthacanthus was the apex predator of freshwater swamps and bayous in Europe and North America.
English Kawichthys Cited by user Rnnsh on 29 Sep 2011 Kawichthys is an extinct genus of symmoriiform cartilaginous fish from Upper Pennsylvanian (Late Virgilian stage) deposits of Kansas, USA.