Loading, please wait...
LOT 2319
Knightia Fossil Fish Plate Group
EOCENE PERIOD, CIRCA 58-36 MILLION YEARS B.P.
2 3/4 - 3 in. (165 grams total, 70-74 mm).
Comprising three roughly oval matrices with Knightia alta specimens. [3, No Reserve]
ProvenanceFrom Wyoming, USA.
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 Uinta, 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:
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.
-
Large Cut and Polished Banded Blue Agate Geode Slice Artefact Base
Sold for (Inc. bp): £20
Thick, oval slice of a geode showing contrasting grey banding with some quartz crystals at the centre. 1.07 kg, 20 cm
From Brazil. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK. -
Fossil Italian Razor Fish on Matrix
Pliocene Epoch, circa 5.33-2.58 million years B.P.Estimate: £200 - 300 (+bp*)
Opening Bid: £100
Smooth razorfish Centriscus strigatus on a rectangular matrix. 266 grams, 16.5 cm
From Lebanon. From a Cambridgeshire, UK, collection. -
Fossil Ammonoid Group
Triassic-Jurassic Period, circa 251-174 million years B.P.Sold for (Inc. bp): £26
Comprising: a polished Goniatite from East Timor, Indonesia; a Perisphinctes ammonite. 502 grams total, 79-93 mm
From the private collection of Kenneth Machin (1936-2020), Buckinghamshire, UK; his collection of antiquities and natural history was formed since 1948; thence by descent.