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LOT 2474
Natural History - Large Fossil Diplomystus Fish
EOCENE PERIOD, 56-33 MILLION YEARS B.P.
6 in. (395 grams, 15.2 cm).
Set in a rectangular shale matrix. [No Reserve]
ProvenanceFrom Wyoming, Green River Formation, U.S.A.
From an old Bristol, 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.
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 - Lapis Lazuli Mineral Specimen Group
Sold for (Inc. bp): £156
Three large pieces of extremely fine lapis lazuli with good pyrite inclusions. 1.4 kg total, 7-11.7 cm
Extremely fine condition.
Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's). -
Natural History - Fossil Keichousaurus Marine Reptile Skeleton
Triassic Period, 250 million years B.P.Sold for (Inc. bp): £780
On a rectangular matrix displaying the complete skeleton. 3.8 kg, 31 x 23 cm
From Xingyi, Guizhou, China. Acquired 1950s-1960s. From an old Bristol, UK, paleontological collection.
Keichousaurus was a late-Triassic marine reptile, and a member of the Pleurosaur family, and 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 - 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.