Vertebrate Paleontology

  1. Pterosaur Evolution and Flight
    1. Pterosaur Characteristics
      1. Wing Membrane Structure
        1. Pneumatic Bones
          1. Crests and Ornamentation
          2. Pterosaur Origins
            1. Scleromochlus Hypothesis
              1. Lagerpeton Relationships
                1. Flight Evolution Theories
                2. Basal Pterosaurs
                  1. Preondactylus
                    1. Peteinosaurus
                      1. Dimorphodon
                        1. Rhamphorhynchus
                        2. Pterodactyloidea
                          1. Pterodactylus
                            1. Dsungaripteridae
                              1. Ornithocheiridae
                                1. Azhdarchidae
                                2. Flight Mechanics
                                  1. Wing Loading
                                    1. Aspect Ratios
                                      1. Soaring vs. Flapping
                                      2. Ecological Roles
                                        1. Piscivory
                                          1. Insectivory
                                            1. Carnivory
                                              1. Filter Feeding
                                              2. Pterosaur Extinction
                                                1. Competition with Birds
                                                  1. Environmental Changes
                                                    1. K-Pg Event Impact

                                                  Previous

                                                  16. Crocodylomorph Evolution

                                                  Go to top

                                                  Next

                                                  18. Dinosaur Origins and Early Evolution