Terebratula

Terebratula is a modern genus of brachiopod with a fossil record dating back to the Late Devonian. These brachiopods are stationary epifaunal suspension feeders and have a worldwide distribution. Terebratula species have biconvex egg-shaped shells, anterior margins of the valves have two small folds, concentric growth lines are quite thin or nearl...
Found on http://en.wikipedia.org/wiki/Terebratula

Terebratula

• (n.) A genus of brachiopods which includes many living and some fossil species. The larger valve has a perforated beak, through which projects a short peduncle for attachment. Called also lamp shell.
Found on http://thinkexist.com/dictionary/meaning/terebratula/

Terebratula

Ter`e·brat'u·la noun ; plural Terebratulæ . [ Nl., dim. from terebratus , past participle , perforated.] (Zoology) A genus of brachiopods which includes many living and some fossil species. The larger valve has a perforated beak, through which projects a short pedun...
Found on http://www.encyclo.co.uk/webster/T/29

Terebratula

Terebratula (the lampshells) are a deep-sea genus of Phylum Brachiopoda.
Found on http://www.probertencyclopaedia.com/browse/BT.HTM
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