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LOT 2524
Natural History - White Pecopteris Fossil Fern Group
CARBONIFEROUS PERIOD, 359-299 MILLION YEARS B.P.
7 7/8 - 8 1/4 in. (1.34 kg total, 20-21 cm).
Contained in a matrix with specimens to both sides. [2, No Reserve]
ProvenanceFrom St. Clair, Pennsylvania, U.S.A.
Acquired during the 1980s.
From the Pradi Collection, Boston, U.S.A.
These fern fossils commonly found in coal-mining areas worldwide. However, the St. Clair ferns are treasured for their rarity and beauty, a result of the fossilised ferns gaining a coating of the mineral pyrophyllite which contrasts with the natural black shale matrix.
CONDITIONTimeLine Auctions follows a 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: Our Vetting Process
AUCTIONS:
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Natural History - Fossil Nautilus Group
Cretaceous Period, 120 million years B.P.Sold for (Inc. bp): £26
Comprising three polished Cymatoceras sakalavus specimens. 140 grams total, 40-46 mm
From the jungles of Mahajanga on the North West coast of Madagascar. From an old Oxfordshire, UK, fossil and mineral collection. -
Natural History - Polished Fossil Ammonite Display
Jurassic Period, 199-145 million years B.P.Estimate: £120 - 170 (+bp*)
Opening Bid: £67
Mounted on a matrix style display base; some restoration. 4.1 kg, 22 cm high
From Madagascar. Ex Cambridgeshire, UK, collection. -
Natural History - Cut Fossil Ammonite Halves
Middle Cretaceous Period, 150 million years B.P.Sold for (Inc. bp): £39
Polished to reveal the distinctive structure of the Cleoniceras sp. chambers, some iridescence; chip to edge of one half. 256 grams total, 10-10.3 cm
From Madagascar. Collected between 1930 and 1960. From the collection of the palaeontologist R Gledhill.