phytodinosauria造句

• However, it was later found that segnosaurs were actually an unusual type of herbivorous theropod saurischian closely related to birds, and the Phytodinosauria hypothesis fell out of favor.
• Bakker's classification separated the theropods into their own group and placed the two groups of herbivorous dinosaurs ( the sauropodomorphs and ornithischians ) together in a separate group he named the Phytodinosauria ( " plant dinosaurs " ).
• The Phytodinosauria hypothesis was based partly on the supposed link between ornithischians and prosauropods, and the idea that the former had evolved directly from the later, possibly by way of an enigmatic family that seemed to possess characters of both groups, the segnosaurs.