Week 3

Question 1

Frugivore

Answer 1

eats fruit, could have a sharp hooked beak like a parrot to rip and tear the fruit apart

Question 2

Piscivores

Answer 2

eat fish, have tall conical teeth and long jaws that can close quickly. or in birds a spear shaped beak.

Question 3

insectivores

Answer 3

eat insects, usually have some digging forelimbs that are powerful but short. can lack teeth entirely or have sharp piercing teeth to make it through exoskeletons

Question 4

durophagy

Answer 4

breaking and eating of bones, takes rounded teeth and then very strong jaw

Question 5

Resorption

Answer 5

taking back the tooth root when it is time to shed the crown of the tooth

Question 6

dinosaurs with dental batteries

Answer 6

Hadrosaurs, ceratopsians. these are analogous structures (same idea but no common ancestor)

Question 7

Hadrosaur dental batteries

Answer 7

The surface is mostly horizontal and is used by moving the jaw back and forth grinding the plants

Question 8

Ceratopsians dental batteries

Answer 8

an almost vertical surface is formed and plants are sheared like a pair of scissors

Question 9

Gastroliths

Answer 9

small collections of rocks found in the ribcages of oviraptorosaurs and ornithomimids, they are reminats of gastric mills

Question 10

gastric mills

Answer 10

found in herbivores which usually lack teeth these are used to mechanically break up the plants with little rocks and muscle action

Question 11

Dromeosaurs

Answer 11

a group of theropods that have thin tails with special support systems. they also have a large sickle claw that is raised on above the ground to keep it sharp

Question 12

Spinosaurs

Answer 12

theropods that have skulls like crocodiles and are thought to be piscivores

Question 13

Alvarezsarus

Answer 13

Group of small theropods, thought to be insectivores due to the short and strong forelimbs, with a large spade shaped claw

Question 14

Tyrannosaurs

Answer 14

Group of theropods with reduced forelimbs but large head. had large serrated teeth and very powerful jaws that were probably capable of durophagy

Question 15

Scavenging

Answer 15

eating a dinosaur that you had no part in killing. durophagy could give an increase to how much you could gain as it doesn’t have to be meat but almost dinosaur who hunts also scavenges when the opportunity arrises

Question 16

Cololites

Answer 16

fossilized gut contents (last meal)

Question 17

coprolites

Answer 17

fossilized poop, although difficult to determine which dinosaur it came from