Loading, please wait...
Details
LOT 2231
Natural History - Green River Fossil Fish Group
EOCENE PERIOD, CIRCA 56-33 MILLION YEARS B.P
4 7/8 x 5 1/2 in. (437 grams, 12.5 x 14.2 cm).
Two Green River fish specimens Diplomystus sp. in a matrix. [No Reserve]
Provenance
From Wyoming (Green River Formation), USA.
From a Lincolnshire, UK, collection.
Footnotes
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.
CONDITIONVETTING:
TimeLine 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:
TimeLine is a leading auction house specialising in antiquities, ancient art, collectables, natural history, coins, medals, and books. Our auctions offer museums, collectors, historians, and enthusiasts the opportunity to acquire unique and historically significant pieces.
RELATED LOTS
-
![Natural History - Boxed Pyrite Mineral Specimen Group [6]](https://timelineauctions.com/upload/images/items/small/211326-s.jpg)
Natural History - Boxed Pyrite Mineral Specimen Group [6]
Sold for (Inc. bp): £20
Each in a labelled specimen tray. 335 grams total, 34-36 mm
From Peru. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's). -
Natural History - British Mixed Pyrite with Ammonite Graveyards
Jurassic Period, circa 190 million years B.P.Sold for (Inc. bp): £26
Comprising three clusters with variously sized ammonites and three singular ammonite fossils, including Eoderoceras, Crucilobiceras and Uptonia(?). 292 grams total, 20-76 mm
Found Charmouth, Dorset, England. -
Natural History - Mosasaur Jaw Section
Cretaceous Period, circa 145-65 million years B.P.Sold for (Inc. bp): £104
From the lower jaw, displaying two teeth from Prognathodon sp.; repaired. 89 grams, 87 mm
From the phosphate mine region, Khouribga, Morocco, North Africa. Acquired 1950s-1960s. From an old Bristol, UK, palaeontological collection.
The Mosasaur is an extinct, large marine reptile dinosaur with a snake-like body, long snout and paddle-like limbs. Found worldwide, they competed with other well-known sea predators of the Late Cretaceous, such as plesiosaurs and ichthyosaurs, for food, existing primarily on a diet of ammonoids, cuttlefish and fish.
