In Depth
The teeth of Hongshanopterus extend past the first third of the skull. Not only does this give Hongshanopterus more teeth than other istiodactylids, it is taken as a marker for Hongshanopterus being a basal member of the group.
Further Reading
– A primitive istiodactylid pterosaur (Pterodactyloidea) from the Jiufotang Formation (Early Cretaceous), northeast China. – Zootaxa 1813:1-18. – X. Wang, D. A. Campos, Z. Zhou and A. W. A. Kellner – 2008.