Loading, please wait...
LOT 2480
Fossil Flexicalymene Trilobite Cluster
DEVONIAN PERIOD, CIRCA 417-354 MILLION YEARS B.P.
9 in. (2117 grams, 230 mm).
A mortality plate showing a cluster of Flexicalymene sp. trilobites.
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:
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.
-
Kambaba Jasper Sphere
Sold for (Inc. bp): £26
A good size sphere showing attractive 'eye' patterns. 464 grams, 69 mm
From a Gloucestershire, UK, collection. -
Fossil Knightia Alta Fish Group
Eocene Period, circa 56-33 million years B.P.Sold for (Inc. bp): £59
Comprising two Knightia alta fish on a rounded matrix. 49 grams, 77 mm
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.
