Pteranodontidae

The Pteranodontidae are a family of large pterosaurs from the Late Cretaceous of North America and possibly other continents including Europe and Africa.

Alexander Kellner, for example, named several additional species for specimens previously classified as Pteranodon, and placed P. sternbergi in a distinct genus, Geosternbergia.

Kellner re-defined Pteranodontidae as the most recent common ancestor of Pteranodon longiceps, Geosternbergia sternbergi and Dawndraco kanzai, and all of its descendants.

This definition is now contentious, however, as the validity of Dawndraco has been disputed and the utility[clarification needed] of separating Geosternbergia from Pteranodon questioned.

Beginning in 2016, Nicholas Longrich, David Martill, and Brian Andres presented evidence of several nyctosaurid and pteranodontid species from the latest Maastrichtian age of north Africa, suggesting that both lineages went through an evolutionary radiation in the Tethys region shortly before the K–Pg extinction event.