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Lower Devonian Crinoid Pernerocrinus from the Southern Kitakami Mountains, N.E. Japan
Title: | Lower Devonian Crinoid Pernerocrinus from the Southern Kitakami Mountains, N.E. Japan |
Authors: | Minoura, Nachio Browse this author |
Issue Date: | Aug-1987 |
Publisher: | 北海道大学 |
Journal Title: | 北海道大学理学部紀要 |
Journal Title(alt): | Jounal of the Faculty of Science, Hokkaido University. Series 4, Geology and mineralogy |
Volume: | 22 |
Issue: | 2 |
Start Page: | 337 |
End Page: | 355 |
Abstract: | Three species of Crotalocrinitidae crinoids, Pernerocrinus hayasaki (Minato and Minoura), P. per-foratus sp. nov. and P. sp. are described. All these species came from the lower part of the Ohno Formation (Lower Devonian) of the southern Kitakami Mountains. The first species was previously describcd as a tabulate coral, Ohnopora hayasakai gen. et sp. nov., belonging to the family Syringolitidae. Robust construction of the Pernerocrinus is interpreted to be especially well adapted to reef environment and its occurrence is strictly confined, at present, to the Lower Devonian. |
Type: | bulletin (article) |
URI: | http://hdl.handle.net/2115/36754 |
Appears in Collections: | Journal of the Faculty of Science, Hokkaido University. Series 4, Geology and mineralogy > Vol.XXII, No.2
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