Middle Pennsylvanian Period, circa 300 million years B.P.. Comprising two Pecopteris sp. fossil seed fern pairs. 175 grams total, 54-66 mm (2 1/8 - 2 5/8 in.).
From the Mazon Creek Fossil Beds, Braidwood, Illinois, USA. Collected 1930-1960. From the collection of the palaeontologist R Gledhill. [4, No Reserve]
Price realized | 20 GBP |
Starting price | 5 GBP |