Lower Devonian conodonts from Port St. Nicholas, southeastern Alaska

Conodonts from a limestone interval exposed above Port St. Nicholas, Prince of Wales Island, southeastern Alaska, include Pandorinellina exigua philipi (Klapper), Eognathodus sulcatus Philip, and Pelekysgnathus serratus Jentzsch. These conodonts indicate an early to middle Pragian age (informal faun...

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Bibliographic Details
Published in:Canadian Journal of Earth Sciences
Main Authors: Savage, Norman M., Churkin Jr., Michael, Eberlein, G. Donald
Format: Article in Journal/Newspaper
Language:English
Published: Canadian Science Publishing 1977
Subjects:
General Earth and Planetary Sciences
Prince of Wales Island
Alaska
Online Access:http://dx.doi.org/10.1139/e77-253
http://www.nrcresearchpress.com/doi/pdf/10.1139/e77-253
Description
Summary:Conodonts from a limestone interval exposed above Port St. Nicholas, Prince of Wales Island, southeastern Alaska, include Pandorinellina exigua philipi (Klapper), Eognathodus sulcatus Philip, and Pelekysgnathus serratus Jentzsch. These conodonts indicate an early to middle Pragian age (informal faunal units 5 or 6 of Klapper et al). This middle Early Devonian age is supported by the presence of the graptolites Monograptus yukonensis, M. craigensis, and M. pacificus in shales above the limestone and by some shelly fossils from within the limestone.

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