Hexinlusaurus
Butler and Fabien Knoll in 2005 , who diagnosed this anatomically conservative species as follows: "A small ornithischian dinosaur distinguished from all other basal ornithischians by a single autapomorphy , the presence of a marked concavity that extends over the lateral surface of the postorbital . " The etymology of the genus name honors Professor He Xin-Lu ( from the Chengdu University of Technology ) who originally named the specimen as "Y . 
<triplet> 2005 <subj> 2005 <obj> point in time