Animals Big Name for Little Guy By Commonplace Fun Facts on September 14, 2014 • ( Leave a comment ) The dinosaur with the longest name is Micropachycephalosaurus (“small thick-headed lizard”). Its fossils are usually found in China. Share this:LinkedInEmailFacebookRedditTwitterPrintTumblrPocketPinterestTelegramWhatsAppSkypeLike this:Like Loading... Related Categories: Animals, Names Tagged as: dinosaurs, Micropachycephalosaurus