AllosaurusTyrannosauridaeCompsognathusOrnithomimidaeOviraptoridaeProtarchaeopteryxCaudipteryxTroodontidaeArchaeopteryxRahonaUnenlagiaSinornithosaurusVelociraptorinaeDromaeosaurusOsteologyMaximum ParsimonyBased on reanalysis of the original matrix.Xu_etal_1999a