chapter 28 Triceratops

Question 1

Name the dinosaurs that lived alongside Triceratops and are preserved in the Hell
Creek Formation:

Answer 1

Triceratops
 Tyrannosaurus rex
 Edmontosaurus
 Thescelosaurus
 Ornithomimus &
Struthiomimus
 Pachycephalosaurus
 Ankylosaurus
 Anzu
 Dakotaraptor
 Acheroraptor
 Leptoceratops
 Torosaurus

Question 2

How does Thescelosaurus fit in with ornithischia?

Answer 2

Thescelosaurus is a neornithischian ornithischian dinosaur, possibly outside Ornithopoda proper, representing a conservative lineage that retained primitive traits while coexisting with more derived herbivores like ceratopsians and hadrosaurs.

Question 3

What does a juvenile Triceratops look like?

Answer 3

low little frill small horns easily visible triangular osteoderms along the frill.

Question 3

Why did Triceratops have a frill?

Answer 3

mating, protection and to show off maturity

Question 4

What changes do we see with the growth of Triceratops?

Answer 4

-osteoderms become smaller and less easy to see along the frill.
-frill grows out.
-horns go from upwards to forward facing.

Question 5

Although most other researches disagree, what does Jack Horner say about Torosaurus?

Answer 5

he thinks it is possible that the Torosaurus is a more mature potentially alpha triceratops.