protaspis

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
  • (Received Pronunciation) IPA(key): /pɹəˈtaspɪs/
    • Audio (Southern England)(file)
  • (General American) 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

See also

References
  • S. M. Gon III (8 November 2007), “Trilobite Reproduction and Development”, in Trilobites.info‎, archived from the original on 2016-04-26.
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