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LOT 3013
Large Heteromorph Fossil Ammonite
CRETACEOUS PERIOD, CIRCA 145-66 MILLION YEARS B.P.
19 3/4 in. (27.1 kg, 50 cm wide).
Very large open coiled specimen set on a freestanding matrix and showing well-defined ribbing.
ProvenanceFrom a Cambridgeshire, UK, collection.
FootnotesHeteromorph ammonites are a diverse group of extinct marine molluscs, that exhibit a variety of different shell shapes.
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 3013
Large Heteromorph Fossil Ammonite
Estimate £500 - 700€580 - 810 (for guidance only)$680 - 950 (for guidance only)
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Fossil Keichousaurus Skeleton in Three-Dimensional Dorsal View
Triassic Period, circa 250 million years B.P.Estimate: £800 - 1,000 (+bp*)
Bids: 1 | Current Bid: £250
Showing a complete skeleton Keichousaurus hui shown from above with clearly defined spinous processes, the front legs tucked partially above the ribs, a curving neck and a long tail. 17.7 kg, 28.9 cm
From the Guizhou formation, China. Previously with Shishang Corporation, Taiwan. From a West London gentleman collector; acquired from a professional fossil company in Taiwan.
Keichousaurus was a late Triassic marine reptile, a member of the Pleurosaur family, which went extinct 250 million years ago during the Triassic-Jurassic extinction event. They were specialised fish eaters and were highly unusual amongst marine reptiles in that they gave birth to live young rather than laying eggs. -
Large Heteromorph Fossil Ammonite
Cretaceous Period, circa 145-66 million years B.P.Estimate: £500 - 700 (+bp*)
Bids: 3 | Current Bid: £300
Very large open coiled specimen set on a freestanding matrix and showing well-defined ribbing. 27.1 kg, 50 cm wide
From a Cambridgeshire, UK, collection.
Heteromorph ammonites are a diverse group of extinct marine molluscs, that exhibit a variety of different shell shapes. -
Scutellum Fossil Trilobite
Devonian Period, circa 444-439 million years B.P.Estimate: £30 - 40 (+bp*)
Bids: 1 | Current Bid: £5
Scutellum sp. trilobite from the family Styginidae on a matrix. 178 grams, 88 mm
From a Cambridgeshire, UK, collection.
