tomdonohue1 Posted April 26, 2023 Share Posted April 26, 2023 (edited) Looking for some ID help on this plant fossil. Found in black shale in the Allegheny Formation (Pennsylvanian age) in western PA (Lawrence Co.) The fossil is approximately 3" long. Edited April 26, 2023 by tomdonohue1 added age Link to comment Share on other sites More sharing options...
Mark Kmiecik Posted April 26, 2023 Share Posted April 26, 2023 Lepidodendron sp.? 1 Mark. Fossil hunting is easy -- they don't run away when you shoot at them! Link to comment Share on other sites More sharing options...
connorp Posted April 26, 2023 Share Posted April 26, 2023 Certainly some kind of lycopsid bark. Some close ups would help. 1 Link to comment Share on other sites More sharing options...
cngodles Posted April 26, 2023 Share Posted April 26, 2023 (edited) Yeah, that looks like the bark of a Lepidodendron. Each of the leaves would fall off, similar to a modern palm tree, and leave these scars on the side. The orange line is probably something else layered above or below it at the time of burial. Seeing that it is small in cross in diameter, it may be from one of the topmost branches during growth. Source: https://en.wikipedia.org/wiki/File:Lepidodendron_reconstrucción.jpg Edited April 26, 2023 by cngodles 1 Fossils of Parks Township - Research | Catalog | How-to Make High-Contrast Photos Link to comment Share on other sites More sharing options...
tomdonohue1 Posted April 27, 2023 Author Share Posted April 27, 2023 (edited) The pattern does look like lepidodendron bark, but there seems to be a stem running through it, which would seem indicative of a leaf. Lepidodendron leaves look more like ferns I thought. Edited April 27, 2023 by tomdonohue1 Link to comment Share on other sites More sharing options...
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