Psittacosaurus lujiatunensis Zhou et al., 2006 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Chordata family Psittacosauridae genus Psittacosaurus species Psittacosaurus lujiatunensis Name Synonyms Hongshanosaurus houi (You et al., 2003) Psittacosaurus houi (You et al., 2003) Psittacosaurus major Sereno et al., 2007 Homonyms Psittacosaurus lujiatunensis Zhou et al., 2006