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LOT 2820
Flexicalymene Fossil Trilobite in Nodule
ORDOVICIAN PERIOD, CIRCA 510-445 MILLION YEARS B.P.
1 7/8 - 2 in. (105 grams total, 47-52 mm).
An opened nodule containing a Flexicalymene sp. specimen. [No Reserve]
ProvenanceFrom a Lincolnshire, UK, collection.
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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Green River Fish Fossils
Eocene Period, circa 58-36 million years B.P.Sold for (Inc. bp): £33
Comprising three rounded matrices with Knightia alta fish fossils. 143 grams total, 8.6-10.5 cm
From Wyoming (Green River Formation), USA. From a Lincolnshire, UK, collection.
In southwest Wyoming (and parts of Colorado and Utah) in the Green River Formation are found some of the world's most outstanding specimens of fossil fish. The Green River system was composed of three lakes: Lake Ulinta, Lake Gosiute and Fossil Lake. These Eocene lakes lay in a series of intermountain basins formed by geological events that uplifted the Rocky Mountains during the early Tertiary time. The climate was much different from the desert-like climate of this area today. Both the fauna (crocodiles, alligators, boa constrictors and some subtropical fish families) and the flora (such as large palm trees) indicate a climate much like that found along the Gulf Coast today. Large amounts of ash found in the sediments indicate that volcanoes were particularly active at this time. -
Mosasaur 'Marine Dinosaur' Fossil Teeth
Cretaceous Period, circa 145-65 million years B.P.Sold for (Inc. bp): £104
Comprising two Mosasaur prognathodon sp. teeth set on individual composite matrices. 726 grams total, 10.6-11.8 cm
From Germany. From a Cambridgeshire, UK, collection.
Mosasaurs (from the Greek for 'lizard') were aquatic dinosaurs which probably gave birth to live young. -
Etched Gibeon Meteorite Group
Sold for (Inc. bp): £117
Two sawn sections showing good Widmanstatten lines and characteristic ablated surface. 8.27 grams total, 18-32 mm
From Namibia, Africa. Acquired from Rod White, UK, 2001. 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.
Gibeon is a meteorite that fell in prehistoric times in Namibia and was named after the nearest town. The meteorite was discovered by the Nama people and used by them to make tools and weapons; in 1836 the English captain J. E. Alexander collected samples in the vicinity of the Great Fish River and sent them to London. John Herschel analysed them and confirmed for the first time the extra-terrestrial nature of the material.
