Binneyitidae

Systematic Paleontology Order Ammonitida Suborder Ammonitina Superfamily Acanthocerataceae Family Binneyitidae

The Binneyitidae, Reedside, 1927, is a small family of ammonoid cephalopods that lived during the Late Cretaceous that consists of rather small, compressed and flat-sided forms with little ornament and peculiar suture tending to have deep, narrow, simple or even entire elements with parallel sides. Includes Binneyites and Borissjakoceras

Derivation is probably from some compressed acanthoceratid such as Protacanthoceras.