Ben CreislerNote that this paper should be in open access in a day or so at the AMNH link:Kathleen N. Dollman, James M. Clark, Mark A. Norell, Xu Xing and Jonah N. Choiniere (2018)Convergent Evolution of a Eusuchian-Type Secondary Palate within Shartegosuchidae.American Museum Novitates 3901 :1-23Free link (soon):Shartegosuchids are a poorly known, early-branching group of Asian and North American crocodylomorphs. Shartegosuchids have been hypothesized to have eusuchian-type secondary palates, but a paucity of described material makes assessing this difficult. Our fieldwork in western Mongolia recovered cranial material of a new Shartegosuchus specimen from the Ulan Malgait Formation, which we CT-scanned and digitally reconstructed to investigate its palatal morphology. We then incorporated this new anatomical information into a revised phylogenetic dataset to assess its affinities. Our study confirms that Shartegosuchus has a posteriorly placed choana that is fully enclosed by the pterygoids, but differs from Eusuchia in possessing a secondary palatal fenestra and reduced palatine bones. Shartegosuchus, together with Adzhosuchus, Fruitachampsa, and Nominosuchus, forms the monophyletic group Shartegosuchidae. Shartegosuchidae is nested within a larger clade Shartegosuchoidea, and this clade is an earlier-diverging lineage than Eusuchia, showing that a eusuchian-type secondary palate evolved multiple times in crocodylomorphs, including very early in the group's evolutionary history. The co-occurrence of Nominosuchus in the Ulan Malgait Formation and the Shishigou Formation allows us to assign an early Oxfordian age to Shartegosuchus. The independent evolution of a eusuchian-type secondary palate in an oreinorostral group suggests that the link between platyrostry and a closed secondary palate has been overstated.**News:==Also, an older paper not yet mentioned:Free pdf:Yi Hongyu, Zhou Changfu & Gao Keqin (2017)A 3D CT dataset of the skull of Liaodactylus primus (Reptilia: Pterosauria) from the Jurassic of China.Biodiversity in China Zone II â Versions ZH2 Vol 2 (4) 2017DOI: 10.11922/csdata.2017.22.zhDataset DOI: 10.11922/sciencedb.498Liaodactylus primus is the earliest filter-feeding pterosaur, discovered from the Late Jurassic Tiaojishan Formation in Jianchang County, Liaoning Province of China. It dates back to about 160 million years ago (161.8Â0.4 â 159.5Â0.6 Ma). The discovery of Liaodactylus primus documents a specialized feeding strategy among pterosaurs in the Mesozoic Yanliao Biota in northern China, which contributes to understanding ecological diversity in reptiles of the biota. Here we provide a dataset of the holotype of Liaodactylus primus (PMOL-AP00031) from X-ray Computed Tomography (X-ray CT), including original CT slice images, reconstructed three-dimensional CT models of the mandibles, animated videos, and morphological character matrix for phylogenetic analysis. Data for the skull of Liaodactylus primus based on CT scan will contribute to further studies of pterosaurs regarding their morphology, ecology, and phylogeny. Three-dimensional virtual models of the mandible of Liaodactylus primus can be 3D printed, with broad applications in research, teaching, and public outreach.===