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LOT 2437
Fossil Harpes Trilobite in Matrix
MIDDLE DEVONIAN PERIOD, CIRCA 380 MILLION YEARS B.P.
4 in. (475 grams, 99 mm).
With an ovate cephalon and an outer bilaminar brim extending posteriorly to long genal prolongations. [No Reserve]
ProvenanceFrom the private collection of Kenneth Machin (1936-2020), Buckinghamshire, UK; his collection of antiquities and natural history was formed since 1948; thence by descent.
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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LOT 2437
Fossil Harpes Trilobite in Matrix
Estimate £30 - 40€35 - 46 (for guidance only)$41 - 54 (for guidance only)
Opening Bid
£5 (EUR 6; USD 7) +BP*
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![Group of Six [6] Large Cut and Polished Agate Geode Halves](https://timelineauctions.com/upload/images/items/small/256037-s.jpg)
Group of Six [6] Large Cut and Polished Agate Geode Halves
Estimate: £30 - 40 (+bp*)
Opening Bid: £5
Comprising six cut and polished geode halves showing characteristic banding, some with crystal-lined interiors. 2.74 kg total, 9-12.5 cm
From Brazil. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK. -
Teardrop-Shaped Amethyst Crystal Geode Display
Circa 120-140 million years B.P.Estimate: £1,000 - 1,400 (+bp*)
Opening Bid: £540
The inner surface lined with vibrant dark purple amethyst crystals and an area of brown-orange druzy quartz, the polished edges of the geode displaying vibrant banding; mounted on a custom-made display stand. 4.14 kg, 20 x 16 x 10 cm, 29 cm including stand
From Artigas, Uruguay. Property of a London lady. -
Fossil Mosasaur 'Marine Dinosaur' Tooth Pair
Cretaceous Period, circa 145-65 million years B.P.Estimate: £40 - 60 (+bp*)
Opening Bid: £5
Comprising two teeth showing good brown enamel, repaired. 74 grams total, 75-78 mm
From a Cambridgeshire, UK, collection.
The Mosasaur is an extinct, large marine reptile dinosaur with an elongated body, long snout and paddle-like limbs. Found worldwide, they competed with other well-known sea predators of the Late Cretaceous, such as plesiosaurs and ichthyosaurs, for food, existing primarily on a diet of ammonoids, cuttlefish and fish.
