lecture 1 - reading notes "fibres and cellular structures preserved in 75-million-year-old dinosaur specimens"

Question 1

define endogenous

Answer 1

growing/originating from within an organism

Question 2

what is collagen?

Answer 2

the main structural protein found in skin and other connective tissue

Question 3

the Cretaceous period

Answer 3

spans 79 million years from the end of the Jurassic period to the beginning of the Paleogene period

Question 4

Eocene

Answer 4

the second epoch of the Paleogene period in the Cenozoic era

lasting from 56-33.9 mya

Question 5

what is an erythrocyte?

Answer 5

a red blood cell, containing haemoglobin

Question 6

define theropod

Answer 6

suborder of dinosaur; members have hollow bones and 3-toed limbs

Question 7

define ovoid

Answer 7

egg shaped

Question 8

define taphnomic

Answer 8

refers to processes of fossilisation

Question 9

define astragalus

Answer 9

another term for ankle bone

Question 10

define phalanx

Answer 10

bone of the finger or toe

Question 11

define hadrosaurid

Answer 11

referred to as duck-billed dinosaurs due to the appearance of the shaped of their snouts

Question 12

define clade

Answer 12

a group of organisms believed to comprise of all the evolutionary descendants of a common ancestor