Lower Devonian Crinoid Pernerocrinus from the Southern Kitakami Mountains, N.E. Japan

Minoura, Nachio

Description

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.

Journal

Jounal of the Faculty of Science, Hokkaido University. Series 4, Geology and mineralogy

Jounal of the Faculty of Science, Hokkaido University. Series 4, Geology and mineralogy 22 (2), 337-355, 1987-08

北海道大学

Details 詳細情報について

CRID: 1050564288950965632

NII Article ID: 120001152060

HANDLE: 2115/36754

ISSN: 00183474

Text Lang: en

Article Type: departmental bulletin paper

Data Source

IRDB
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