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LOT 2524
Fossil Petraster Starfish
ORDOVICIAN PERIOD, CIRCA 485-444 MILLION YEARS B.P.
4 in. (248 grams, 99 mm).
A complete Petraster sp. specimen on an irregular matrix. [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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Fossil Fly Group
Eocene Period, 50 million years B.P.Sold for (Inc. bp): £39
Comprising three specimens on a matrix. 145 grams total, 51-66 mm
From the Green River Formation, south-western Wyoming, U.S.A. Collected between 1930 and 1960. From the collection of the palaeontologist R. Gledhill. -
Fossil Elrathia Trilobite Group
Middle Cambrian Period, circa 500 million years B.P.Sold for (Inc. bp): £26
Comprising two Elrathia kingii specimens on irregular matrices. 170 grams total, 8.1-10.5 cm
From a Lincolnshire, UK, collection. -
Green River Fossil Knightia Fish Group
Eocene Period, circa 56-33 million years B.P.Sold for (Inc. bp): £26
Comprising three rounded matrices, two with a single Knightia alta specimen and one with a pair of fish. 188 grams total, 73-98 mm
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.
