Word.ws English Dictionary

opisthoparian

opisthoparian noun: any trilobite of the order †Opisthoparia.

Noun

opisthoparian (plural opisthoparians)

  1. Any trilobite of the order †Opisthoparia.

Adjective

opisthoparian (not comparable)

  1. Of a facial suture of a trilobite, terminating along the hind cephalic margin adaxial to the genal angle.
  2. Of or relating to the order †Opisthoparia of trilobites.
    • Study of silicified ontogenetic series of opisthoparian (Aphelaspis), gonatoparian (Glaphyraspis), and proparian (Hardyoides) trilobites indicates the probable homology of cephalic spines in ptychopariid trilobites.1962, Allison R. Palmer, “Comparative Ontogeny of Some Opisthoparian, Gonatoparian and Proparian Upper Cambrian Trilobites”, in Journal of Paleontology, volume 36, number 1, page 87

Forms of opisthoparian

pluralopisthoparians

Questions about opisthoparian

What does opisthoparian mean?
Opisthoparian means any trilobite of the order †Opisthoparia.
What part of speech is opisthoparian?
Opisthoparian can be a noun or an adjective.
What is the plural of opisthoparian?
The plural of opisthoparian is opisthoparians.

Words near opisthoparian in the dictionary

  1. opisthomastigotes
  2. opisthomerite
  3. opisthomerites
  4. opisthomonorchiine
  5. opisthonotal
  6. opisthoparian
  7. opisthoparians
  8. opisthoproctid
  9. opisthoproctids
  10. opisthopubic
  11. opisthorchiasis

Source and license

Adapted from Wiktionary: opisthoparian (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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