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545
ROWELL, A. J. 1962. The brachiopod genus Valdiviathyris Helmcke. Palaeontology, 4, 4, 542–545.
A. J. Rowell The type species of Valdiviathyris Helmcke 1940, which is known only from one specimen, is considered to be a young craniaceid, closely related to, if not actually congeneric with, Ancistrocrania Dall. The family Valdiviathyridae Helmcke is regarded as a junior synonym of Craniidae Forbes. The Palaeontological Association (Free Access)