Genus Allenypterus | Phylum Chordata Family Hadronectoridae Species A. montanus | |
 | ||
Allenypterus is a genus of a prehistoric lobe-finned fish which lived during the Carboniferous period (Early Pennsylvanian to Late Mississippian, around 354–290 million years ago). Fossils have been discovered in Bear Gulch Limestone, Montana, USA.
References
Allenypterus Wikipedia(Text) CC BY-SA