: a genus of fossil ferns based on tree fern trunks with a vascular system that is a polycyclic dictyostele see starling stone

Word History


New Latin, from Latin, a precious stone; from its speckled appearance when polished

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Dictionary Entries Near Psaronius

Cite this Entry

“Psaronius.” Dictionary, Merriam-Webster, Accessed 26 Sep. 2023.

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