Strophomenida is a large, extinct order of articulate brachiopods that existed from the lower Ordovician to the lower Jurassic period. It was the largest known order of brachiopods, encompassing over 400 genera, including the largest and heaviest of known brachiopod shells. The strophomenids lost the ability to attach by the stalk in adult specime...
Found on
http://en.wikipedia.org/wiki/Strophomenida
(from the article `lamp shells`) ...substance punctate or impunctate—i.e., with or without pits; more than 200 genera; Early Cambrian through Permian (225,000,000 years ago).Order ...
Found on
http://www.britannica.com/eb/a-z/s/173
No exact match found.
