Page "Pteranodon" Paragraph 56

A number of additional species of Pteranodon have been named since the 1870s, although most now are considered to be junior synonyms of two or three valid species.

The best-supported is the type species, P. longiceps, based on the well-preserved specimen including the first-known skull found by S. W. Williston.

This individual had a wingspan of.

Other valid species include the possibly larger, P. sternbergi, with a wingspan originally estimated at.

P. occidentalis, P. velox, P. umbrosus, P. harpyia, and P. comptus are considered to be nomina dubia by Bennett ( 1994 ) and others who question their validity.

All probably are synonymous with the more well-known species.