Carboniferous Kentucky (fern?) Fossil Identification

[FossilRobert]

I recently acquired some fossils that were said to have been from the Breathitt Formation of Leslie County, Kentucky. The majority of the specimens were smaller slabs of rock with fern/horsetail fossils (Neuropteris, Sphenopteris, Macroneruopteris, Alethopteris and Calamites). However, two of the specimens that i received were quite large and I am struggling to come up with an identification for them.

 

Specimen #1 - The rounded fossil measures 27.5 cm (10.8 inches) wide and is 7 cm (2.8 inches) at its thickest point. 

 

 

(second specimen will be in second post due to photo size restrictions)

 

 

[FossilRobert]

Specimen #2 - The large slab of rock with fossil is 30.5 cm (12 inches) at its widest point. 

 

 

[Strepsodus]

Second one looks like a Stigmaria.

[Rockwood]

The first may be Artesia.