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.
-
![Group of Three [3] Large Cut and Polished Agate Geode Specimens](https://timelineauctions.com/upload/images/items/small/256039-s.jpg)
Group of Three [3] Large Cut and Polished Agate Geode Specimens
Sold for (Inc. bp): £13
Comprising three freestanding sections with polished faces showing mainly grey and brown banding, and each with a central crystal-lined cavity. 2.06 kg total, 9.7-12.2 cm
From Brazil. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK. -
Megalodon Extinct Giant Shark's Fossil Tooth
Pliocene Epoch, circa 5.6 million years B.P.Sold for (Inc. bp): £195
A Carcharocles megalodon shark tooth, with serrations and polished tooth enamel. 105 grams, 90 mm
From a Lincolnshire, UK, collection.
Carcharodon megalodon is regarded as one of the largest and most powerful marine predators in vertebrate history and likely had a profound impact on the structuring of the marine communities. Fossil remains indicate that this giant shark reached a length of more than 16 metres (52 ft) and also affirm that it had a cosmopolitan distribution. Scientists suggest that in life it looked like a stockier version of the great white shark, Carcharodon carcharias. -
![Group of Ten [10] Cut and Polished Agate Geode Slices](https://timelineauctions.com/upload/images/items/small/256011-s.jpg)
Group of Ten [10] Cut and Polished Agate Geode Slices
Sold for (Inc. bp): £46
Comprising ten polished transparent to translucent slices, some with crystal-lined centres, and one with dendritic inclusions. 844 grams total, 9-14 cm
From Brazil. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK.
