Chapter 29 Pachycephalosaurs

Question 1

What does the name pachycephalosaur mean?

Answer 1

thick-headed lizards

Question 2

What do the names mean: Pachycephalosaurus, Stygimoloch, Dracorex hogwartsia

Answer 2

-thick headed lizard
-demon from the River Styx
-dragon king of Hogwarts

Question 3

What evidence is there that Stygimoloch and Dracorex are ontogomorphs of Pachycephalosaurus?

Answer 3

same time period, scaling size, similar anatomy and cutting into bone to find how spongey/old they where when they died.

Question 4

What groups suffered complete extinction at the end of the Cretaceous, in addition
to the non-avian dinosaurs?

Answer 4

• Pterasuars.

Question 5

Foraminifera (forams) also suffered huge losses. What are they?

Answer 5

micro single celled animals that feed on plankton

Question 6

The asteroid impact sent ejecta into the air. Describe the ejecta and the effects.

Answer 6

parts of the asteroid and the earth that it slammed into sending dust into the air at enormous force and falling back to the earth as molten droplets. This would have caused massive heat and fires around the globe.