synapsids and diapsids Flashcards

1
Q

what are amniotes?

A

defined by 3 membranes around the embryo

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

when had amniotes evolved by?

A

amniotes evolved by late carboniferous

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

how is the lineage defined?

A

defined by temporal fenestration - holes in the top of the head

synapsid = 1 hole
diapsids = 2 holes
anapsid = no holes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

what are the most abundant permian land vertebrates?

A

synapsids

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

whats the purpose of temporal fenstration?

A

allowed jaw to close as adductor muscle could bulge

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

whats the different with synapsids and sauropsid?

A

morphological differences in synapsids and sauropsid brains

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

what are cynodonts?

A

where mammalian jaw, posture and diaphragm originated

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

what was a dinosaurs (sauropsids) posture

A

bipedal postue

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

what are the differences between synapsid and sauropsid?

A

lungs

jaws

circulation

kidneys

brains

parental care

How well did you know this?
1
Not at all
2
3
4
5
Perfectly