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Flashcards in Theria Deck (7)
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1

What did the Theria evolve from ?

The Trituberculata

2

Which group of mammals didn't evolve from the Trituberculata ?

The Monotremes

3

What is a Tribospheric cheek tooth pattern ?

Where one cusp on the molar is prominent

4

What is the cheek tooth pattern of modern day humans ?

We have 4 cusps on each molar

5

What is the advantage of a Tribospheric cheek tooth pattern ?

Improved efficiency In cutting and crushing insects

6

Which organism still have the Tribospheric cheek tooth pattern ?

Primitive marsupials and Placentalia (eutherians)

7

What links Trituberculates, marsupials and Placentalia (Eutherians)?

Similarities in tooth structure.