Gyrothyris williamsi is a species in the taxonomic classification of the armaments. The armor is a fasted animal with a bivalve shell. The animal's feeding device is a lofophore, a ring with hollow tentacles on it. There are cilia, small swordfishes, which make a water flow to the mouth.
The armor belongs to the genus Gyrothyris and belongs to the family Terebratellidae. The scientific name of the species was published for the first time in 2008 by Bitner, Cohen, Long, Richer de Forges & amp; Saito.
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