Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • proper noun A taxonomic class within the subphylum Chelicerataextinct arthropods.

Etymologies

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Examples

  • Trilobita and Eurypterida, among the Crustacea; making altogether five for the great sub-kingdom of Annulosa.

    Essays 2007

  • This paper, with Hünicken as a coauthor, revises the identity of this fossil as a “bizarre eurypterid”, a water scorpion Eurypterida.

    Archive 2006-02-01 AYDIN 2006

  • Amongst the molluscous animals we have members of the very highest known class, namely, the Cephalopods, or cuttle-fish class; and amongst articulated animals we find Trilobites and Eurypterida, which do not belong to any incipient worm-like group, but are distinctly differentiated

    On the Genesis of Species St. George Mivart

  • But a complete development, such as already obtains in the lobster, &c., was reached by the Eurypterida and Trilobites of the palæozoic strata; and annelids, probably formed mainly like those of the present day, abounded during the deposition of the oldest fossiliferous rocks.

    On the Genesis of Species St. George Mivart

  • Eurypterida, among the Crustacea; making altogether five for the great sub-kingdom of Annulosa.

    Lectures and Essays Thomas Henry Huxley 1860

  • Eurypterida, among the Crustacea; making altogether five for the great sub-kingdom of Annulosa.

    Lay Sermons, Addresses and Reviews Thomas Henry Huxley 1860

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