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File:Lepidodendron sp. (fossil lycopod) (lower Pottsville Group, Lower Pennsylvanian; Irish Ridge East roadcut, near Trinway, Ohio, USA) 2 (32394265633).jpg

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Summary

Description

Lepidodendron sp. - fossil plant in sandstone from the Pennsylvanian of Ohio, USA.

Plants are multicellular, photosynthetic eucaryotes. The oldest known land plant body fossils are Silurian in age. Fossil root traces of land plants are known back in the Ordovician. The Devonian was the key time interval during which land plants flourished and Earth experienced its first “greening” of the land. The earliest land plants were small and simple and probably remained close to bodies of water. By the Late Devonian, land plants had evolved large, tree-sized bodies and the first-ever forests appeared.

Shown above is a fossil lycopod plant stem in sandstone. The specimen is partially coated with a crust of carbonized material that highlights the diamond-shaped leaf attachment scars.

Classification: Plantae, Lycophyta, Lepidodendrales

Stratigraphy: float from the lower Pottsville Group, upper Morrowan Series, upper Lower Pennsylvanian

Location: loose piece from near the base of the Irish Ridge East Outcrop - roadcut along the eastbound entrance ramp from Rt. 60 to Rt. 16 (southeastern portion of Rt. 16-Rt. 60 interchange), north-northwest of the towns of Trinway & Dresden, northern Cass Township, northwestern Muskingum County, eastern Ohio, USA (~40° 09’ 13.56” North latitude, ~82° 01’ 29.37” West longitude)
Date
Source Lepidodendron sp. (fossil lycopod) (lower Pottsville Group, Lower Pennsylvanian; Irish Ridge East roadcut, near Trinway, Ohio, USA) 2
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@N05/32394265633. It was reviewed on 24 June 2017 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0.

24 June 2017

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current17:33, 24 June 2017Thumbnail for version as of 17:33, 24 June 20173,316 × 2,001 (4.39 MB)Ser Amantio di NicolaoTransferred from Flickr via Flickr2Commons

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