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Platform Conodonts of the Monte Cristo Group, Mississippian, Arrow Canyon Range, Clark County, Nevada

R. W. Pierce and R. L. Langenheim, Jr.
Journal of Paleontology
Vol. 48, No. 1 (Jan., 1974), pp. 149-169
Stable URL: http://www.jstor.org/stable/1303115
Page Count: 21
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Platform Conodonts of the Monte Cristo Group, Mississippian, Arrow Canyon Range, Clark County, Nevada
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Abstract

The following fourteen species and four subspecies of stratigraphically significant conodonts occur in the Monte Cristo Group at Tungsten Gap: Cavusgnathus sp., Eotaphrus burlingtonensis Collinson and Norby, Gnathodus antetexanus Rexroad and Scott, G. bilineatus (Roundy), G. cuneiformis Mehl and Thomas, G. semiglaber (Bischoff), G. typicus Cooper, Polygnathus communis carinus (Hass), P. communis communis Branson and Mehl, P. mehli Thompson, Pseudopolygnathus dentilineatus (Branson), P. marginatus (Branson and Mehl), P. primus (Branson and Mehl), P. triangulus nudus n. sp., P. triangulus triangulus (Voges) and Taphrognathus varians Branson and Mehl. The local ranges of these taxa define nine zones which correlate with the Late Kinderhookian through Early Meramecian conodont zones defined as in the Midwest type Mississippian and related rocks.

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