Carboniferous Pennsylvanian calamite, annularius, sphenophyllum and asterophylloides speciments

[ntloux]

I am attaching images of calamite and annularius specimens in my collection.  Because their appears to be some debate among the experts on the relationships between calamites and sphenophyllum and asterophylloides, I am also including images of these specimens.  I would welcome comments, suggestions or corrections from viewers.  Further species identification would also be appreciated.

 

Image 1 is of a Mesocalamite specimen that was among other Pennsylvanian fossils from Kentucky.

 

 

 

Image 2 is of another Pennsylvanian Calamites  from Kentucky.

 

 

 

Image 3 is of a Pennsylvanian Calamites specimen from Alabama.

 

 

 

Images 4 and 5 are Pennsylvanian Annularia leaf specimens from Mazon Creek IL.

 

 

 

 

 

 

Image 6 is a Pennsylvanian Annularia radiata specimen from the Westwalian A & B, Lower Silesian in Poland.  The contrast between the fossil and the underlying rock is so poor that I did alter the exposure settings in order to better view the fossil. 

 

 

 

Image 7 is of a Pennsylvanian Sphenophyllum specimen from Mazon Creek IL.

 

 

 

Image 8 is of a Pennsylvanian Sphenophyllum cuneifolium specimen from the Westwalian A & B, Baszkirian, Lower Silesian in Poland.  Again, because the contrast was so poor, I altered the exposure in an effort to obtain a better picture.

 

 

 

 

Image 9 is of a Pennsylvanian Asterophylloides specimen from eastern Kentucky.

 

 

 

 

[Mark Kmiecik]

1. and 2. Calamites cistii.

3. Calamites undulatus?

4. and 5. Annularia inflata.

6. Annularia radiata. Agreed.

7. Sphenophyllum emarginatum.

8. Sphenophyllum cuneifolium. I'm not familiar with this species.

9. Asterophyllites equisetiformis? (left)    ?Asterophyllites sp. (right)

 

Wait for others to confirm or refute my ID's before making changes, as usual. I've been wrong before and probably will be again.

 

 

 

Edited March 13 by Mark Kmiecik
fix grammar

[ntloux]

Mark,  Thank you for the information.  Nick