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The AAPG/Datapages Combined Publications Database

CSPG Bulletin

Abstract

Bulletin of Canadian Petroleum Geology
Vol. 13 (1965), No. 2. (June), Pages 327-334

Early Calpionellids From the Upper Devonian of Western Canada, With a Note on Pyrite Inclusions

J. W. Murray, F. J. R. Taylor

ABSTRACT

Thin sections of limestone from the Upper Devonian Waterways Formation from the subsurface of Alberta, western Canada, reveal the presence of calpionellids, the fossilized loricas (tests) of ciliate protozoa. They are described as Vautrinella devonica sp. nov. This is apparently the earliest record of calpionellids to date, only one other occurrence of Paleozoic forms of the group being known to the authors. These Devonian calpionellids are interpreted as being a marine planktonic group which inhabited the Waterways sea. In many instances thin sections show inclusions of pyrite aggregates and grains within the calpionellid loricae which are asymmetrically distributed.

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