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Lectotype and synonymy of Cryphaeus nicholsi Roy, 1929 (Trilobita, Devonian)
Published online by Cambridge University Press: 14 July 2015
Extract
The trilobite species Cryphaeus nicholsi Roy, 1929, was based on two pygidia from a Devonian red sandstone bed at Patacamaya, La Paz Department, Bolivia. Study of the syntypes (Field Museum of Natural History, Chicago) reveals that two well-known species are represented.
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