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Discovery of the Subfamily Tropidocoryphinae (Trilobita) in North America

John L. Cisne
Journal of Paleontology
Vol. 42, No. 1 (Jan., 1968), pp. 231-232
Stable URL: http://www.jstor.org/stable/1302145
Page Count: 2
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Abstract

Tropidocoryphe richterorum, n. sp. is based on one pygidium (YPM 26099) from the Middle Devonian of New York which bears the features characteristic of its genus. This specimen constitutes the first reported evidence of the Subfamily Tropidocoryphinae Přibyl, 1946 in North America.

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