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LOT 2477
Natural History - Fossil 'Sand Dollar' on Matrix
JURASSIC PERIOD, 199-145 MILLION YEARS B.P.
6 3/4 in. (555 grams, 17 cm).
Comprising a large specimen on a sandstone matrix. [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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Natural History - Fossil Brittle Star Group
Ordovician Period, 485-444 million years B.P.Sold for (Inc. bp): £26
Comprising three matrices displaying four partial Ophiuroidea sp. brittle stars; held in a white card collector's tray. 410 grams total, 79-97 mm
Fine condition.
From El Kaid Errami, Tafilalt, Morocco, North Africa. Ex an old German paleontological collection. -
Natural History - Dolphin Vertebra Group
Miocene Age, circa 15 million years B.P.Sold for (Inc. bp): £13
Comprising four Delphinus sp. vertebrae. 352 grams total, 56-91 mm
From North Carolina, U.S.A. Acquired 1950s-1960s. From an old Bristol, UK, palaeontological collection. -
Natural History - Knightia Fossil Fish in Matrix
Eocene Period, 56-33 million years B.P.Sold for (Inc. bp): £52
Displaying a Knightia alta specimen. 348 grams, 14.2 cm
From Wyoming, Green River Formation, U.S.A. Acquired during the 1980s. From the Pradi Collection, Boston, U.S.A.
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.
