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Flashcards in Theria Deck (7)
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1
Q

What did the Theria evolve from ?

A

The Trituberculata

2
Q

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

A

The Monotremes

3
Q

What is a Tribospheric cheek tooth pattern ?

A

Where one cusp on the molar is prominent

4
Q

What is the cheek tooth pattern of modern day humans ?

A

We have 4 cusps on each molar

5
Q

What is the advantage of a Tribospheric cheek tooth pattern ?

A

Improved efficiency In cutting and crushing insects

6
Q

Which organism still have the Tribospheric cheek tooth pattern ?

A

Primitive marsupials and Placentalia (eutherians)

7
Q

What links Trituberculates, marsupials and Placentalia (Eutherians)?

A

Similarities in tooth structure.