Sometimes we miss the big picture.
Here then, for your approval and disapproval are comparisons between closest kin found by the Nesbitt (2011) tree versus those found by the large reptile tree. We started at the base with Mesosuchus. Earlier we looked at Vancleavea. Yesterday we looked at Euparkeria. Today we look at the phytosaur, Parasuchus, surrounded by Euparkeria on primitive side and the Ornithosuchidae (represented here by Ornithosuchus) and the Pterosauria led by Eudimorphodon on the derived side (Figs. 1, 2)
- Parasuchus Kin According to Nesbitt (2011)
Here (Fig. 2) are the selected Nesbitt (2011) sisters for visual comparison. I don’t see any gradual evolution (accumulation of derived characters) here. Do you?
Parasuchus Kin According to the Large Reptile Tree
The large reptile tree found Proterochampsa and the choristoderans, Cteniogenys and Lazarussuchus to be closer than Euparkeria and Ornithosuchus because they share a long narrow rostrum and dorsal nares among a suite of other traits.
One look at these results brings immediate understanding that there’s something wrong in the matrix that produces such strange bedfellows.
As always, I encourage readers to see specimens, make observations and come to your own conclusions. Test. Test. And test again.
Evidence and support in the form of nexus, pdf and jpeg files will be sent to all who request additional data.
Nesbitt SJ 2011. The early evolution of archosaurs: relationships and the origin of major clades. Bulletin of the American Museum of Natural History 352: 292 pp.