Dinosaurs

Question 1

when do marine reptiles first appear?

Answer 1

the Triassic period

Question 2

what do ichthyosaurs look like

Answer 2

dolphins with vertical tail flukes: gave birth to live young due to their aquatic lifestyle

Question 3

dinosaurs of the jurassic period

Answer 3

giant sauropods and some large carnivores ruled the jurassic period

Question 4

what do fossil trackways tell us about dinosaur social structure

Answer 4

suggest herd like behavior amongst sauropods

Question 5

what is allosaurus

Answer 5

biggest predator in the jurassic period

Question 6

what are the two main dinosaur divisions and what are they based off of?

Answer 6

Ornithischian (bird like) and saurischian (reptile like): based off of pubis bone

Question 7

what was in the solnhofen limestone?

Answer 7

archaeopteryx: half bird half dinosaur

Question 8

cretaceous dinosaur examples

Answer 8

Tyranasaures rex, velociraptors, hadrosaurs, Ceratopsians, etc

Question 9

what is the largest animal to take flight?

Answer 9

Quetzalcoatlus

Question 10

what was the main predator of the cretaceous sea?

Answer 10

mosasaurs (marine reptiles)

Question 11

coevolution of herbivorous dinosaurs and angiosperm plants

Answer 11

• Hadrosaurs built upon the strong dental batteries from iguanodontids
• Ceratopsians also had complex dental batteries
• plants with complex flowering seed system ( two eggs and ovaries protected inside flower)