Psaronius
fossil fern genus
Quick Summary
Psaronius was a genus of fossil tree ferns that existed from the Carboniferous Period through the Permian Period, approximately 358.9 million to 251.9 million years ago. These ancient plants are characterized by their tree fern trunks, which featured a complex vascular system known as a polycyclic dictyostele. The name "Psaronius" comes from the Latin word for a precious stone, referring to its speckled appearance when polished. This genus is considered either a member of the Marattiaceae family or closely related to it.12
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