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The AAPG/Datapages Combined Publications Database

AAPG Bulletin


Volume: 56 (1972)

Issue: 8. (August)

First Page: 1563

Last Page: 1570

Title: Biostratigraphy and Correlation of McMonnigal and Tor Limestones, Toquima Range, Nevada: GEOLOGICAL NOTES

Author(s): Edwin H. McKee (2), Charles W. Merriam (2), William B. N. Berry (3)


The McMonnigal Limestone, a predominantly thick-bedded gray limestone bearing a dominantly brachiopod-coral fauna, and the Tor Limestone, a massive limestone bearing a dominantly coral-stromatoporoid fauna, are partly correlative formations thrust together in the Toquima Range, central Nevada. Correlation is based on shelly fossil, graptolite, and conodont faunas. The stratigraphic relation of corals and graptolites from these formations suggests that the Monograptus uniformis and "Silurian coral zone E" and the Monograptus hercynicus and "Devonian coral zone A" zones are at least partly coeval.

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