File:Lycopod (fossil scale tree) (Llewellyn Formation, Middle Pennsylavnian; Bear Valley Strip Mine, Northumberland County, Pennsylvania, USA).jpg

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English: Fossil lycopod in shale from the Pennsylvanian of Pennsylvania, USA.

The fossil plant seen here is the impression and partially carbonized (coalified) remains of a fossil log from Pennsylvania's coal fields. The host rock is mudshale. It comes from the Pennsylvanian-aged Llewellyn Formation, which consists of mixed siliciclastic sedimentary rocks and coal. The scar pattern on this specimen is characteristic of fossil lycopods - the scale trees, a famous example of which is Lepidodendron.

Classification: Plantae, Lycophyta, Lycopodiopsida

Stratigraphy: float sample from the lower Llewellyn Formation (= shale interval between an underlying coal unit in the Mammoth Bottom Split number 8 cycle and an overlying sandstone in the Mammoth Top Split number 9 cycle), middle to upper Desmoinesian, upper Middle Pennsylvanian

Locality: northern side / slopes of the Bear Valley Strip Mine, south of a sharp bend in Carbon Run, southwest of the town of Shamokin, southern Northumberland County, Western Middle Anthracite Coal Field, eastern Pennsylvania (vicinity of 40˚ 45’ 50.13" North latitude, 76˚ 35’ 42.85" West longitude)

See info. at:

en.wikipedia.org/wiki/Lycopodiopsida
Date
Source https://www.flickr.com/photos/47445767@N05/51508876183/
Author James St. John

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This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/51508876183. It was reviewed on 12 October 2021 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0.

12 October 2021

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current18:02, 12 October 2021Thumbnail for version as of 18:02, 12 October 20213,622 × 2,041 (5.65 MB)Ser Amantio di Nicolao (talk | contribs)Uploaded a work by James St. John from https://www.flickr.com/photos/47445767@N05/51508876183/ with UploadWizard

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