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Hello all, I came across the attached fossils in shales of the Breathitt Group in southeastern Kentucky, USA (Pennsylvanian, Atokan). The associated strata are full of typical foliage, like Alloiopteris, Neuopteris, etc, as well as calamites and pteridosperm stems (like the ones in the photos). The specific fossils that I can't identify are the small, detached, orbicular "leaves" located near the pteridosperm rachis in the first photo (close up of a different one in the second). They're about 1-2cm in width, some have lost their carbon, some have kept it. There's about 11 of these on the slab and counterpart, all nearly identical. I've collected Pennsylvanin foliage for a couple years now, and haven't seen this before. Textbooks, including Taylor and Taylor (2009), didn't seem to include structures like it. I've also asked around a bit - including a professional Kentucky paleobotanist - but to no avail. And that brings me here . . . any ideas? Tom
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- carboniferous
- foliage
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