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Showing results for tags 'dinosauromorpha'.
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A new paper is available online: Kammerer, Christian F.; Nesbitt, Sterling J.; Flynn, John J.; Ranivoharimanana, Lovasoa; Wyss, André R., 2020. A tiny ornithodiran archosaur from the Triassic of Madagascar and the role of miniaturization in dinosaur and pterosaur ancestry. Proceedings of the National Academy of Sciences doi:10.1073/pnas.1916631117. ISSN 0027-8424. Until now, the fossil record of Triassic diapsids from Madagascar was pretty poor, and after the putative 'prosauropod' from the Isalo II unit (later named Azendohsaurus madagaskarensis) was found to be a non-archosauriform archosauromorph (like the Azendohsaurus type species), avemetatarsalians remained absent from the published Isalo II diapsid fossil record, but Kongonaphon, along with an unnamed silesaurid and an unnamed basal avemetatarsalian (reported at the SVP 2019 meeting), demonstrates that early bird-line archosaurs were widespread in Gondwana during the Anisian-Ladinian.
Hi, Does anyone have a copy of the paper that I could look at: Skawiński, T.; Ziegler, M.; Czepiński, Ł.; Szermański, M.; Tałanda, M.; Surmik, D. & Niedźwiedzki, G. (2017). A re-evaluation of the historical 'dinosaur' remains from the Middle-Upper Triassic of Poland. Historical Biology. 27 (4): 442–472. doi:10.1080/08912963.2016.1188385. The paper by Skawinski et al. is quite remarkable for rejecting the argument by Rauhut and Hungerbuhler (2000) that Velocipes guerichi is too indeterminate to be placed beyond Vertebrata, and while it agrees with Wild (1973) in classifying Thecodontosaurus primus as non-dinosaurian, it disagrees with Wild's synonymy of primus with Protanystropheus antiquus.