Temporal range: Early Cretaceous,
Lü et al., 2016
Lü et al., 2016
It is known from a mostly-complete lower jaw, which bears 36 slender, evenly-spaced, conical teeth jutting out at an angle on its tip. Some teeth are smaller than the others, and appear to be replacement teeth. The teeth had a relatively high density of over 4 per centimetre (10/in), although the spaces between the teeth were wider than the diameter of the teeth themselves. Such teeth are not seen in any other toothed pterosaurs from the Jiufotang Formation with comparable material, and this specialized dental morphology is indicative of a piscivorous lifestyle.
Although no phylogenetic analysis was conducted to determine its affinities, Pangupterus has a small process, called an odontoid, on the end of the maxilla; such a process is also seen in the istiodactylids Longchengpterus and Istiodactylus. In 2022, Chang-Fu Zhou and colleagues identified Pangupterus as a member of the Ctenochasmatidae without comment.
- Lu, J.; Liu, C.; Pan, L.; Shen, C. (2016). "A New Pterodactyloid Pterosaur from the Early Cretaceous of the Western Part of Liaoning Province, Northeastern China". Acta Geologica Sinica. 90 (3): 777–782. doi:10.1111/1755-6724.12721. S2CID 132555691.
- Zhou, C.-F.; Wang, X.; Wang, J. (2022). "First evidence for tooth–tooth occlusion in a ctenochasmatid pterosaur from the Early Cretaceous Jehol Biota". Geological Society, London, Special Publications. 521: 9–17. doi:10.1144/SP521-2021-141. S2CID 244695072.
- Martill, D. (2014). "A functional odontoid in the dentary of the Early Cretaceous pterosaur Istiodactylus latidens: Implications for feeding". Cretaceous Research. 47: 56–65. doi:10.1016/j.cretres.2013.11.005.