ISBN: | 978-5-5114-6005-5 |
High Quality Content by WIKIPEDIA articles! Praeglyphioceratidae is one of seven families of the Prionocerataceae families, a member of the Goniatitida order. They are an extinct group of ammonoid, which are shelled cephalopods related to squids, belemnites, octopuses, and cuttlefish, and more distantly to the nautiloids.