Trigonotretidae
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Trigonotretidae is an extinct family of articulate brachiopods belonging to the order Spiriferida.
Brachiopod
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Brachiopods, phylum Brachiopoda, are a phylum of animals that have hard "valves" on the upper and lower surfaces, unlike the left and right arrangement in bivalve molluscs. Brachiopod valves are hinge
Lingulaanatina AA
Terebratalia transversa 141510036
Paired lophophores of Terebratalia transversa, a modern brachiopod in the order Terebratulida
An unidentified brachiopod feeding off the coast of Ushant, France.