: a genus of fossil seed ferns of the Devonian Lavive structure and terminal sporangia similar to those of Psilophyton but lacking the leafiness of the Carboniferous and later ferns

Word History


New Latin, from eo- + spermat- + -pteris

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Dictionary Entries Near Eospermatopteris

Cite this Entry

“Eospermatopteris.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Eospermatopteris. Accessed 28 Nov. 2023.

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