Pachydesmoceras Spath, 1922, a Cretaceous ammonite in Colorado

A specimen of the ammonite Pachydesmoceras linderi (De Grossouvre) is described from an unnamed shale member of the Carlile Shale of Las Animas County, Colorado, and referred to the Prionocyclus quadratus zone of late Turonian age. It is the first record of the genus in North America and the second...

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Bibliographic Details
Main Authors: Cobban, W, Kennedy, W
Format: Journal article
Language:English
Published: 1991