Specimen:    Extremely rare fossil plant unknown horsetail cones fructification type - not Macrostachya !

Locality:       Poland - GZW, Upper Silesia Coal Basin – Detailed data will be add to package

Stratigraphy:  Upper Carboniferous / Pennsylvanian, Bashkirian, Westphalian B , Orzeskie Beds

Age:                ca. 310 myo

Matrix size:    ca. 9,5 x 6,0 x 0,5 cm         

Description:

Extremely rare fossil plant - unknown horsetail cones or fructification type - not Macrostachya !

Calamites is a genus of extinct arborescent (tree-like) horsetails to which the modern horsetails (genus Equisetum) are closely related. Unlike their herbaceous modern cousins, these plants were medium-sized trees, growing to heights of more than 30 meters (100 feet). They were components of the understories of coal swamps of the Carboniferous period.