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LOT 1755
Natural History - Fossil Brittle Star Group
MIDDLE ORDOVICIAN PERIOD, CIRCA 450 MILLION YEARS B.P.
3 1/8 - 4 1/8 in. (332 grams total, 8.1-10.6 cm).
Ophiuroidea sp. specimens on irregular matrices. [3, No Reserve]
ProvenanceFrom El Kaid Errami, Tafilalt, Morocco.
From an old German collection.
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AUCTIONS:
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![Natural History - Cut and Polished Agate Crystal Geode Half Group [3]](https://timelineauctions.com/upload/images/items/small/207956-s.jpg)
Natural History - Cut and Polished Agate Crystal Geode Half Group [3]
Sold for (Inc. bp): £7
Each filled with clusters of small amethyst crystals. 1.6 kg total, 8.5-11.7 cm
Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's). -
Natural History - White Pecopteris Fern Specimen Group
Devonian Period, circa 417-354 million years B.P.Sold for (Inc. bp): £13
Five Pecopteris sp. fern specimens on irregular matrices 3.04 kg total, 15-25 cm
From St. Clair, Pennsylvania, USA. Acquired during the 1980s. From the Pradi Collection, Boston, USA.
These fern fossils are very common from coal mining areas around the world. However, it is the unique state of preservation of the white on the black shale that gives the St. Clair ferns their beauty and rarity. This combination is not found anywhere else in the world. -
![Natural History - Kalahari Desert Wind Stone Group [3]](https://timelineauctions.com/upload/images/items/small/208102-s.jpg)
Natural History - Kalahari Desert Wind Stone Group [3]
Sold for (Inc. bp): £20
Comprising three wind-rounded pebbles with their individual hollowed out 'nests', from the Kalahari Desert region; each set provided with a hessian draw-ribbon pouch. 320 grams total, 33-53 mm
From the Kalahari Desert, Southern Africa. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's).
