Answer:
This is the sample answer from edmentum/plato so paraphrase it:
Scientists once believed that all theropods were carnivores. However, recent research showed that some theropods evolved to eat plants. The fossil indicates that the new species of dinosaurs evolved to eat plants earlier than some of the other theropods. So, this new species may help scientists piece together an evolutionary lineage of theropods that ate plants.
Step-by-step explanation: