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LOT 2152
Natural History - Fossil Metcanthina Trilobite
UPPER DEVONIAN PERIOD, CIRCA 419-358 MILLION YEARS B.P.
3 in. (169 grams, 78 mm).
A Metacanthina barrandei trilobite showing shell structure, eyes and side antenna; on a matrix. [No Reserve]
ProvenanceFrom Hamar Laghdad Formation, Pragian, (Alnif), Morocco, North Africa.
From an old Oxfordshire, UK, fossil and mineral collection.
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AUCTIONS:
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Natural History - Fossil Sinosura Starfish Group
Jurassic Period, circa 199-145 million years B.P.Sold for (Inc. bp): £7
Comprising three possibly Sinosura kelheimense specimens, a pair on one matrix and the other with one specimen. 146 grams total, 63-70 mm
From Stonhoffen, Germany. From a Lincolnshire, UK, collection. -
Natural History - Fossil Pine Cone
Eocene Period, circa 55-33 million years B.P.Sold for (Inc. bp): £72
A rare unidentified agatized Dicotaledon fruit specimen. 22.4 grams, 46 mm
From the Western Sahara Desert, Morocco, North Africa. Acquired 1950s-1960s. From an old Bristol, UK, palaeontological collection. -
Natural History - Huge Knightia Fossil Fish Display
Eocene Period, circa 58-33 million years B.P.Sold for (Inc. bp): £1,950
With a shoal of Knightia alta sp. specimens, some preserved on top of each other, on an irregular matrix; mounted on plywood backing. 42.9 kg, 117 cm wide
From Wyoming (Green River Formation), USA. Property of a Cambridgeshire, UK, gentleman.
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.
