What does a fossil nest with eggs tell us about dinosaur behavior?

During which period did dinosaurs first appear?

Which continent has yielded significant Ceratopsian fossils?

What is the purpose of the frill in many Ceratopsian dinosaurs?

What does the term “Thyreophora” mean?

During which period did Ceratopsians flourish?

Which of the following can be determined from trace fossils? (Select all that apply)

Which hip configuration is characteristic of Ornithischian dinosaurs?

What is the name of the tail weapon found in Stegosaurus?

What evidence do we have about Thyreophoran behavior? (Select all that apply)