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New choristodere from China


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A new paper you may find interesting:


Ryoko Matsumoto, Liping , Yuan Wang & Susan E. Evans (2019). The first record of a nearly complete choristodere (Reptilia: Diapsida) from the Upper Jurassic of Hebei Province, People's Republic of China. Journal of Systematic Palaeontology (advance online publication) doi:Â https://doi.org/10.1080/14772019.2018.1494220 https://www.tandfonline.com/doi/full/10.1080/14772019.2018.1494220


Coeruleodraco is significant because it is the most complete Jurassic choristodere, considering that the exact relationships of Choristodera to other diapsids have remained contentious to this day given the dearth of early choristoderes. I know that the choristodere placement of Pachystropheus by Storrs and Gower (1993) has been questioned in recent papers due to the lack of skull remains, which preserve some diagnostic choristodere characters, and Lazarussuchus was considered the most primitive choristodere, a late-surviving basal one, until new material by Matsumoto et al. (2013) showed it to be more advanced than Cteniogenys.

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