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Studies of Evolution in the Genus Spirifer. By Carroll Lane Fenton. pp. x + 436, 50 plates, and 204 text-figures. Publications of the Wagner Free Institute of Science, ii. Philadelphia, 1931.
Published online by Cambridge University Press: 01 May 2009
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- Copyright © Cambridge University Press 1932
References
page 332 note 1 The term “ phratry ” is defined on p. 30 as “ A monophyletic or nearly monophyletic group composed of two or more gentes which may differ widely, however, in their evolutionary trends ”.