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/
(General American) IPA^(key): /pɹəˈtæspəs/
Hyphenation: prot‧as‧pis

Noun

protaspis (plural protaspides)

(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 26 April 2016.

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