Sphenophyllales
plural noun
Sphe·no·phyl·la·les
\ˌsfē(ˌ)nōfə̇ˈlā(ˌ)lēz\
Definition of Sphenophyllales
: an order of fossil plants (subdivision Sphenopsida) coextensive with the genus Sphenophyllum
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Origin and Etymology of sphenophyllales
New Latin, from Sphenophyllum + -ales
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