Terebratulida
Terebratulida (terebratulids; class Articulata) Order of Brachiopoda with punctate shells, rounded hinge lines, functional pedicle, deltidial plates, and a lophophore support usually consisting of a pair of crura and a calcareous loop. The three suborders comprising the order first appeared in the Lower Devonian; the Centronellidina became extinct at the end of the Permian, the Terebratulidina and the Terebratellidina are still extant.
Terebratulida
Terebratulida (phylum Brachiopoda, class Articulata) An order of brachiopods that have punctate shells, rounded hinge-lines, functional pedicle, deltidial plates, and a lophophore support usually consisting of a pair of crura and a calcareous loop. The three suborders comprising the order first appeared in the Lower Devonian; one became extinct at the end of the Permian, two are extant.
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