New Lepidosauromorpha part 3
- Pterosaurs arise from fenestrasaurs like Cosesaurus, Sharovipteryx and Longsiquama.
- The basalmost pterosaurs is the long-legged Bergamodactylus (MPUM 6009),
- After basal Triassic taxa, pterosaurs split into dimorophodontids (including anurognathids) and eudimorphodontids (all other pterosaurs).
- The IVPP V13758 embryo would grow to become an 8x larger, anurognathid, which is very big considering the embryo is the size of several other anurognathids.
- The flathead anurognathid is not congeneric with Anurognathus.
- The holotype of Jeholopterus is probably a blood-lapping vampire.
- Eudimorphodon has an unusual posteriorly wide torso.
- The holotype of Sordes includes a displaced ulna and radius, which is the cause of the wing membrane appearance between the ankles. Other Sordes specimens are not conspecific nor congeneric.
- Rhamphorhynchus was derived from Campylognathoides after phylogenetic miniaturization.
- A juvenile Rhamphorhynchus longiceps was recovered by phylogenetic analysis. It was otherwise considered an adult.
- Embryo, juvenile and adult pterosaurs cannot be distinguished except by the presence of eggshell, associated adults of similar morphology and phylogenetic analysis.
- Pterodactyloid-grade pterosaurs arose 4x by convergence, twice through Dorygnathus and twice through Scaphognathus and all by way of phylogenetic miniaturization.
- JME-Sos 2428 (no. 57 in the Wellnhofer 1970 catalog) is a flightless pterosaur.
- Zhejiangopterus demonstrates isometry during ontogeny.
- When pterosaurs walked they could not and did not put much weight on their ski-pole-like fingers. When they floated they locomoted principally with their forelimbs.
- Darwinopterus was not the transitional pterosaur, but a dead end.
- The smallest known adult pterosaur, B St 1967 I 276 (No. 6 of Wellnhofer 1970) is the size of an adult bee hummingbird.
- Germanodactylids gave rise to pteranododontids, dsungaripterids, shenzhoupterids and tapejarids. All have a sharp, tooth-tipped rostrum.
- The variety in Pteranodon and Nyctosaurus skulls is phylogenetic, not ontogenetic or gender-based.
- Sinopterus liui is not congeneric with the holotype of Sinopterus.
- … and many, many more pterosaur insights.