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Pennsylvanian seed fern fossils

Pennsylvanian seed fern fossils

The following are images of Pennsylvanian seed fern fossils in my collection.  Members of the Fossil Forum have generously provided comments, insights and corrections to many of these images; comments/suggestions/corrections from readers are welcome!  It should be noted species names followed by a question mark indicate that these names are likely but not definitive.  Specimens from eastern Kentucky were found in abandoned coal mines on private farms

I am including images of the following specimens:

1)   Alethopteris serlii(?) from the Pennsylvanian in eastern Kentucky

2)   Crenulopteris acadica(?) from the Pennsylvanian in Mazon Creek, IL

3)   Diplazites(?) unita(?) from the Pennsylvanian in Mazon Creek, IL

4)   Eusphenopteris rotundiloba(?) from the Pennsylvanian in eastern Kentucky

5)   Eusphenopteris obtusiloba  Brongniart from the mid Pennsylvanian  (~310 MYA) in the Westphalian B from Upper Silesia         in Poland

6)   Laveineopteris rarinervis(?) from the Pennsylvanian in eastern Kentucky

7a)  Lyginopteris hoeninghausi is from the Pennsylvanian Pottsville formation in Jefferson County AL  

7b)  Closeup of the Lyginopteris hoeninghausi specimen in 7a

8)    Mariopteris nervosa (?) from the Pennsylvanian in eastern Kentucky

9)    Senftenbergia plumosa from the Pennsylvanian in Upper Silesia, Poland

10)  Sphenopteris spinosa (?) from the Pennsylvanian in eastern Kentucky

11)  Pecopteris(?) from the Pennsylvanian in eastern Kentucky

12)  Macroeuropteris scheuchzeri(?) from the Pennsylvanian in Mazon Creek, IL

 

Lastly I have included one image of a Devonian Glossopteris(?) specimen possibly by Australia?

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