File:Mystery holdfasts + crinoid holdfasts on Latitemnocheilus sp. nautiloid shell (Poverty Run Limestone) (16549775961).jpg

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Mystery holdfasts (small, light-colored structures at right) + crinoid holdfasts on the inner concave surface of a Latitemnocheilus sp. nautiloid shell fragment (14 x 11 mm) from the Pennsylvanian of eastern Ohio.

There are no encrusters on the outer, convex surface of the nautiloid shell fragment.

Stratigraphy: fissile carbonaceous shale to calcareous gray shale just above the Poverty Run Limestone, upper Morrowan, upper Lower Pennsylvanian

Locality: Irish Ridge East outcrop - top of low roadcut on northern side of east-bound entrance ramp from Rt. 60 to Rt. 16, ~2.3 miles north-northwest of Dresden, northern Cass Township, Muskingum County, eastern Ohio, USA
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Source Mystery holdfasts + crinoid holdfasts on Latitemnocheilus sp. nautiloid shell (Poverty Run Limestone)
Author James St. John

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This image was originally posted to Flickr by jsj1771 at https://www.flickr.com/photos/47445767@N05/16549775961. It was reviewed on 3 March 2015 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0.

3 March 2015

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current18:13, 3 March 2015Thumbnail for version as of 18:13, 3 March 20151,230 × 1,440 (513 KB)Jacopo Werther (talk | contribs)Transferred from Flickr via Flickr2Commons

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