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LOT 1813
Natural History - Fossil Phacops Trilobite
UPPER DEVONIAN PERIOD, CIRCA 419-358 MILLION YEARS B.P.
1 3/4 in. (120 grams, 46 mm).
Phacops rana trilobite on a freestanding 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 - Polished Fossil Wood Slice
Late Triassic Period, circa 225 million years B.P.Sold for (Inc. bp): £39
Polished to both cut faces and displaying textured bark on the edges. 223 grams, 13 cm
From Madagascar. From a Lincolnshire, UK, collection. -
Natural History - Polished Douvilleiceras Fossil Ammonite Group
Middle Cretaceous Period, circa 150 million years B.P.Sold for (Inc. bp): £52
Comprising three Douvilleiceras sp. (sometimes known as a Goat Horn) polished to reveal rich calcites and suture patterns. 157 grams total, 45-54 mm
From the North-East Coast of Madagascar in the jungles of Mahajanga. Acquired 1950s-1960s. From an old Bristol, UK, palaeontological collection. -
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Natural History - Large Multi Fossil Fish Plate
Eocene Period, circa 56-33 million years B.P.Sold for (Inc. bp): £338
The large sandstone matrix with five Knightia alta specimens. 8.25 kg, 50.5 x 38 cm
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.
