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LOT 2313
Natural History - Fossil Sand Shark Tooth Display
EOCENE PERIOD, 56-33 MILLION YEARS B.P.
1/2 - 1 in. (41 grams total, 12-26 mm).
Comprising five teeth in a square display frame. [5, No Reserve]
ProvenanceFrom a Cambridgeshire, 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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Natural History - Fossil Keichousaurus Marine Reptile Skeleton
Triassic Period, circa 250 million years B.P.Sold for (Inc. bp): £2,340
Comprising a complete Keichousaurus hui skeleton on a rectangular matrix. 2.58 kg, 20 x 29.5 cm
From Xingyi, Guizhou, China. Ex J. Shaul, collection, UK.
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. -
![Natural History - Boxed Polished Quartz Crystal Ball Group [4]](https://timelineauctions.com/upload/images/items/small/211318-s.jpg)
Natural History - Boxed Polished Quartz Crystal Ball Group [4]
Sold for (Inc. bp): £26
Comprising four translucent spheres with some internal inclusions; supplied in cardboard specimen trays. 338 grams total, 36-40 mm
Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's). -
Natural History - Knightia Fossil Fish Group
Eocene Period, circa 56-33 million years B.P.Sold for (Inc. bp): £111
Comprising three matrices with Knightia eocaena specimens. 123 grams total, 73-93 mm
From Lindgren Quarry, 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.
