 In contrast to the previous analysis , You and Dodson find Chaoyangsaurus to be the most basal neoceratopsian , more derived than Psittacosaurus , while Leptoceratopsidae , not Protoceratopsidae , is recovered as the sister group of Ceratopsidae . This study includes Auroraceratops , but lacks seven taxa found in Xu and Makovicky 's work , so it is unclear how comparable the two studies are . Asiaceratops and Turanoceratops are each considered nomina dubia and not included . Along with Dong Zhiming , You described Magnirostris in 2003 , but to date has not included it in any of his cladograms . 
 In contrast to the previous analysis , You and Dodson find Chaoyangsaurus to be the most basal neoceratopsian , more derived than Psittacosaurus , while Leptoceratopsidae , not Protoceratopsidae , is recovered as the sister group of Ceratopsidae . This study <a href='uninflect' title='1'><mark>includes</mark></a> Auroraceratops , but <a href='uninflect' title='2'><mark>lacks</mark></a> seven taxa found in Xu and Makovicky <a href='null_genetive' title='3'><mark>'s</mark></a>work , so it is unclear how comparable the two studies are . Asiaceratops and Turanoceratops are each considered nomina dubia and not included . Along with Dong Zhiming , You described Magnirostris in 2003 , but to <a href='negative_concord' title='4'><mark>date</mark></a> <a href='been_done' title='5'><mark>has</mark></a> not included it in any of his cladograms . 
In contrast to da previous analysis , yhu and Dodson find Chaoyangsaurus to b the most basal neoceratopsian , more derived than Psittacosaurus , while Leptoceratopsidae , not Protoceratopsidae , is recovered as tdasister group of Ceratopsidae . This study include Auroraceratops , but lack seven taxa found in Xu and Makovicky  work , soo it is unclear how comparable the two studies are . Asiaceratops and Turanoceratops r each considered nomina dubia and not included . Along with Dong Zhiming , You described Magnirostris in 2003 , but to no date done not included it in any of his cladograms .