Eo·​sper·​ma·​top·​ter·​is | \ ˌē(ˌ)ōˌspərməˈtäptərə̇s \

Definition of Eospermatopteris

: 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

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History and Etymology for Eospermatopteris

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

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Cite this Entry

“Eospermatopteris.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Eospermatopteris. Accessed 11 May. 2021.

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