Pteranodon sternbergi is an extinct species of the pteranodontid pterodactyloid pterosaur genus Pteranodon from the Late Cretaceous geological period of...

identity in most cases. Pteranodon sternbergi is the only known species of Pteranodon with an upright crest. The lower jaw of P. sternbergi was 1.25 meters (4...

with the bird Ichthyornis and with Pteranodon longiceps, though the second Niobrara Pteranodon species, P. sternbergi, had disappeared from the fossil record...

about 86 million years ago. The specimen was earlier referred to Pteranodon sternbergi. However, when Kellner in 2010 assigned this latter species to the...

additional species for specimens previously classified as Pteranodon, and placed P. sternbergi in a distinct genus, Geosternbergia. Kellner re-defined Pteranodontidae...

given a phylogenetic definition by David Unwin as the common ancestor of Pteranodon and Nyctosaurus plus all its descendants. Though Marsh had originally...

other nyctosaurids. Instead, it expands more gently, similar to that of Pteranodon. Below is a cladogram showing the results of a phylogenetic analysis first...

demonstrated the opening and closing of its wings. Ed Mack's sculpture Pteranodon sternbergi is a stunning life-size model that hangs over Dinosaur Mountain...

discovered an unusual Pteranodon skull in Kansas, FHSM VP-339 that would later serve as the type specimen of the species Pteranodon sternbergi. 1954 Ambroggi...

lineage. Analyses by David Unwin did indicate a close relationship between Pteranodon and Nyctosaurus, though he used the name Pteranodontia for the clade containing...