Theria facts for kids
Quick facts for kids TheriaTemporal range: Lower Cretaceous – Recent
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| House Mouse, Mus musculus | |
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Theria
Parker & Haswell, 1897
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| Infraclasses | |
Theria is a subclass of mammals. It includes all mammals that give birth to live young without using a shelled egg.
The theria are divided into two smaller groups (infraclasses): metatheria and eutheria. The sole surviving metatheria are the marsupials, and the eutheria are the placental mammals.
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Theria Facts for Kids. Kiddle Encyclopedia.