Protorthoptera
plural noun
Prot·orthoptera
¦prōt+
: an order of extinct insects related to the Orthoptera, known only from the Upper Carboniferous and Permian, and characterized by numerous venational features recalling the Orthoptera
protorthopteran
adjective or noun
"+
protorthopteron
noun
"+
protorthopterous
adjective
"+
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Merriam-Webster unabridged
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