Sinornithosaurus millenii Xu et al., 1999 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Chordata family Dromaeosauridae genus Sinornithosaurus species Sinornithosaurus millenii Name Synonyms Sinornithosaurus haoiana Liu et al., 2004 Homonyms Sinornithosaurus millenii Xu et al., 1999