What are Some Paleozoic Animals?

The Paleozoic (PZ) symbol is one of the geological ages, starting at an isotope age of 542 ± 0.3 million years (Ma) and ending at 251 ± 0.4Ma. The Paleozoic belonged to the Phanerozoic. The previous generation was Neoproterozoic and the next generation was the Mesozoic.

The Paleozoic era is an ancient biological age that lasts about 300 million years. This is an important time for the animal kingdom. It kicked off the Cambrian with an evolution that has not been fully explained so far. The range of Cambrian animals was limited to the ocean, but with the continuation of the Paleozoic, some animals turned to dry land. In the late Paleozoic, reptiles and mammal-like animals appeared. The Paleozoic era ended with the largest extinction known to date.

Early Paleozoic

Geological characteristics:

include

Paleozoic era--

The age of early Paleozoic algae. Vascular plants did not appear until the early Silurian period. Early and Middle Devonian were early vascular plants

In the era, pre-sexy plants were just emerging. The Late Devonian and Early Carboniferous were dominated by the Pinus order and Wedge-leaf class, followed by Pteridophyte, Pre-Gymede and Seed Fern. Late Carboniferous and Early Permian Cycads and Ginkgo have just appeared. By the Late Permian, the thick-thicked fern was prosperous, the thin-thicked fern was increased, and there were also many plants of the order Coda, and the number of plants of the conifer and ginkgo order increased, entering the era of gymnosperms. In the early Paleozoic oceans, there were many kinds of creatures. The plant kingdom is dominated by seaweed. Trilobites, corals, and brachiopods have appeared in the animal kingdom. The trilobite is an arthropod, and the Cambrian is the heyday of the trilobite. By the time of the Ordovician, cephalopods of the mollusc phylum appeared, and the main biological phyla included pen stones, brachiopods, and trilobites. Most notable was the emergence of vertebrates-fishes and the earliest terrestrial plants in the middle Silurian.