Introduction to mammals

how many living vertebrate species are alive? and how many mammals?
>50000 with ~5488 mammals
1 of 5
what body type did pelycosaurs retain?
lizard-like (limbs to side)
2 of 5
list anatomical developments of mammals and their functions
skull and jaws= more muscle = more food, lengthen tooth rows/specialisation/differentiation = herbivory, secondary palate = breathe & eat, pelvics, spine, limbs = more flexible, ectothermy to endothermy
3 of 5
what groups went extinct during the Permian, when? how many?
Pelycosaurs & non-cynodont therapsids, 248MA, 96% extinct
4 of 5
when was the Cenozoic?
65MA to current Holocene
5 of 5

Other cards in this set

Card 2

Front

what body type did pelycosaurs retain?

Back

lizard-like (limbs to side)

Card 3

Front

list anatomical developments of mammals and their functions

Back

Preview of the front of card 3

Card 4

Front

what groups went extinct during the Permian, when? how many?

Back

Preview of the front of card 4

Card 5

Front

when was the Cenozoic?

Back

Preview of the front of card 5

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