The 10 Most Important Dinosaurs You've Never Heard Of

By Bob Strauss, About.com Guide

Often times, the dinosaurs the public happens to latch onto--Apatosaurus, Velociraptor, Tyrannosaurus Rex, etc.--are less important to paleontologists than they are to journalists, fiction writers and movie producers. Here's an assortment of 10 dinosaurs you've probably never heard of, but which have made substantial contributions to our knowledge of prehistoric life during the Mesozoic Era.