An excavation of decade old fossils led to a realization: It's time to rethink the evolutionary history of some of the biggest dinosaurs that ever walked the earth.

An excavation of decade old fossils led to a realization: It's time to rethink the evolutionary history of some of the biggest dinosaurs that ever walked the earth.

An excavation of decade old fossils led to a realization: It's time to rethink the evolutionary history of some of the biggest dinosaurs that ever walked the earth.