Images for Chapter 15 The Origin of Mammals

Cynodonts

Teeth and jaws

Mammalian Reproduction

The First Mammals

Morganucodonts

Hadrocodium, a new Early Jurassic mammal.

Triconodonts

Phylogram for advanced mammals. Figure 15.8.

Monotremes

Multituberculates

The Tribosphenic Molar

Zhangheotherium

Tribosphenic Teeth Evolved Twice

Zalambdalestes skeleton

Marsupials and their ancestors (metatherians)