Tawa hallae: New Meat-Eating Dinosaur Alters Evolutionary Tree [PALAEOBLOG] “The firm placement of Herrerasaurus within the theropod lineage suggests that once dinosaurs appeared, they very rapidly diversified into the three main dinosaur lineages that persisted for more than 170 million years.”

I’m happy with any new dinosaurs, truth be told.  If they happen to prove evolution and migration patterns that’s just extra awesome.

Tawa hallae: New Meat-Eating Dinosaur Alters Evolutionary Tree [PALAEOBLOG] “The firm placement of Herrerasaurus within the theropod lineage suggests that once dinosaurs appeared, they very rapidly diversified into the three main dinosaur lineages that persisted for more than 170 million years.”

I’m happy with any new dinosaurs, truth be told. If they happen to prove evolution and migration patterns that’s just extra awesome.