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Used in some classifications
Answer for the clue "Used in some classifications ", 11 letters:
merostomata
Alternative clues for the word merostomata
Word definitions for merostomata in dictionaries
Wikipedia
Word definitions in Wikipedia
Merostomata is a class of chelicerate arthropods that contains the extinct Eurypterida (sea scorpions) and the extant Xiphosura (horseshoe crabs). The term was originally used by James Dwight Dana to refer to Xiphosura only, but was emended by Henry Woodward ...
The Collaborative International Dictionary
Word definitions in The Collaborative International Dictionary
Merostomata \Mer`o*stom"a*ta\, prop. n. pl. [NL., fr. Gr. me`ros thigh + ?, -?, mouth.] (Zo["o]l.) A class of Arthropoda, allied to the Crustacea. It includes the trilobites, Eurypteroidea , and Limuloidea . All are extinct except the horseshoe crabs ( ...