How To Use Paleozoic era In A Sentence

• Many crinoids are primarily nocturnal but they are seen during the day with their arms rolled up. living fossil existing virtually unchanged from the ancestors in the geologic age known as the Ordovician Period, but there are many more fossils formed from the Paleozoic Era. CreationWiki - Recent changes [en]
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• Â Terry makes several jumps in time — to Siberia, then to the British Isles, then to the Paleozoic era and then to 2026 — where he finds himself with an aged Eric Bellmont. New episode of Time Jumper arrives on iTunes | Major Spoilers - Comic Book Reviews and News
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• The productive Paleozoic era gave rise to hard-shelled organisms, vertebrates, amphibians, and reptiles. February 2009
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