Fossil Astrotheca and Neuropteris Ferns in Split Nodules

拍品描述

Carboniferous Period, circa 358-298 million years B.P. Comprising two opened nodules showing the positive and negative of the fern fossil. 366 grams total, 10-10.7 cm (4 - 4 1/8 in.). [2, No Reserve] From Pennsylvanian Mazon Creek, Braidwood, Illinois, USA. From the private collection of Kenneth Machin (1936-2020), Buckinghamshire, UK; his collection of antiquities and natural history was formed since 1948; thence by descent. TimeLine Auctions follows a rigorous vetting process to ensure the authenticity and legality of all items, reinforcing our commitment to integrity and responsible trading. Each antiquity, antique, and coin lot undergoes thorough examination by a vetting committee of at least ten external specialists, professional trade association members, scientists, and archaeologists. See our website for more information.

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