turricula

/ˌtɜːrkˈliːə/ or /ˈtɜːrˌkliːə/

Definitions

1. noun

A genus of extinct ammonites, characterized by the presence of a distinctive ridge or keel on the shell.

“The fossil of a turricula was discovered in the Jurassic rock formation.”

Synonyms

  • ammonite
  • coiled shell

Antonyms

  • non-coiled shell
  • straight shell