Assertion: eurypterid | /r/HasProperty | considered in the sense
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Source sentences:
text: Admitting the relationship of the eurypterids to the arachnids, Laurie thinks that "the eurypterids must be considered as intermediate between Crustacea and Arachnida, in the sense that they are among the most primitive arachnids, and therefore nearer the junction point of the two terms.