Omeisaurus
In Depth With its incredibly long neck Omeisaurus is both a relative and possible comtempory to the more famous Mamenchisaurus. However previous Upper Shaximiao Formation fossils of Omeisaurus are now considered indeterminate. If Omeisaurus really does only exist in Lower Shaximiao deposits, then it may confirm that Mamenchisaurus replaced Omeisaurus since the former is only … Read more