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LOT 2425
Wyoming Fossil Knightia Fish
EOCENE PERIOD, CIRCA 56-33 MILLION YEARS B.P.
6 1/8 in. (439 grams, 15.5 cm).
Knightia alta specimen on a rectangular matrix. [No Reserve]
ProvenanceEx AA Shop, Windsor, UK; and Donaldson collection.
FootnotesIn 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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Fossil Mosasaur 'Marine Dinosaur' Tooth with Root
Cretaceous Period, 145-65 million years B.P.Sold for (Inc. bp): £52
Comprising two Mosasaur prognathodon teeth and roots set in composite matrices. 763 grams total, 11.4-12 cm
From a Cambridgeshire, UK, collection. Property of a Cambridgeshire, UK, gentleman. -
Fossil Ammonite in Nodule
Jurassic Period, Toarcian Stage, circa 180 million years B.P.Sold for (Inc. bp): £59
An opened nodule containing a large Hildites sp. fossil. 1.29 kg, 14 cm
From Yorkshire coast. From a Lincolnshire, UK, collection. -
Wyoming Fossil Knightia Fish
Eocene Period, circa 56-33 million years B.P.Sold for (Inc. bp): £26
Knightia alta specimen on a rectangular matrix. 439 grams, 15.5 cm
Ex AA Shop, Windsor, UK; and Donaldson 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.
