Calamites cisti (Fossil horsetail)
 Era: Paleozoic
 Period: Carboniferous
 Series: Middle Pennsylvanian
 Stage: Moscovian (315.2 - 307 Ma)
 Formation: Carbondale
 Origin: Mazon Creek, Illinois (USA)
 Piece measurements: 120 x 99 x 36 mm / 4.71 x 3.9 x 1.41"
 Weight: 733 g / 1.617 lb
 Description: Scarce material. Positive and negative well preserved, 100% natural, unrestored.


 This piece will travel insured in a safety package to arrive in perfect condition.