fibularia

/ˌfaɪbjuːˈɛəriə/ (FY-byoo-AY-ree-uh)

Definitions

1. noun

A genus of fossilized, extinct sea urchins.

“The paleontologist studied the fibularia fossils found in the ancient rock formation.”

Synonyms

  • fossil
  • sea urchin

Antonyms

  • living species
  • modern organism