protaspis

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English

WOTD – 22 May 2016
An illustration from the 11th Edition of Encyclopædia Britannica showing five stages in the life cycle of the trilobite Sao hirsuta
A fossil of the trilobite Phacops rana

Etymology

prot- +‎ aspis (from Ancient Greek ἀσπίς (aspís, “shield”)).

Pronunciation

  • Lua error in Module:parameters at line 290: Parameter 1 should be a valid language or etymology language code; the value "RP" is not valid. See WT:LOL and WT:LOL/E. IPA(key): /pɹəˈtaspɪs/
  • Lua error in Module:parameters at line 290: Parameter 1 should be a valid language or etymology language code; the value "GA" is not valid. See WT:LOL and WT:LOL/E. IPA(key): /pɹəˈtæspəs/
  • Hyphenation: prot‧as‧pis

Noun

protaspis (plural protaspides)

  1. (paleontology) A stage in the development of a trilobite where the creature has not yet developed articulated segments.

Derived terms

Derived terms

Template:der-mid

See also

References

  • S. M. Gon III (2007 November 8) “Trilobite Reproduction and Development”, in Trilobites.info‎[1], archived from the original on 26 April 2016.
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