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nounfrom 544 million to about 230 million years ago
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Definition that contains paleozoic
- family psilophytaceae Paleozoic plants
- psilophytaceae Paleozoic plants
- order psilophytales Paleozoic simple dichotomously branched plants of Europe and eastern Canada including the oldest known vascular land plants
- psilophytales Paleozoic simple dichotomously branched plants of Europe and eastern Canada including the oldest known vascular land plants