Word

Paleozoic era, n.

from 544 million to about 230 million years ago
<noun.time>

Paleozoic Paleozoic era

semantic pointers

instance hypernym

era, geological era

part meronym

Permian, Permian period Carboniferous, Carboniferous period Devonian, Devonian period, Age of Fishes Silurian, Silurian period Ordovician, Ordovician period Cambrian, Cambrian period