Terebratulids are one of only three living orders of articulate brachiopods, the others being the Rhynchonellida and the Thecideida. Craniida and Lingulida include living brachiopods, but are inarticulates. The name, Terebratula, may be derived from the Latin `terebra`, meaning `hole-borer`. The perceived resemblance of terebratulid shells to ...
Found on
http://en.wikipedia.org/wiki/Terebratulida
(from the article `lamp shells`) ...(brachidium); punctate or impunctate, usually biconvex; delthyrium open or closed; more than 300 genera; mid-Ordovician to Jurassic (136,000,000 ...
Found on
http://www.britannica.com/eb/a-z/t/26
No exact match found.
