Loading, please wait...
LOT 2351
Natural History - Cut and Polished Fossil Ammonite
MIDDLE CRETACEOUS PERIOD, 150 MILLION YEARS B.P.
3 - 3 1/4 in. (136 grams total, 76-82 mm).
Showing the distinctive pattern of the cross-section chambers, Cleoniceras sp. [2, No Reserve]
ProvenanceCollected 1930-1960.
From the collection of the palaeontologist R Gledhill.
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.
-
Natural History - Woolly Mammoth Bone Bead Necklace String
Devensian Period, 110,000-12,000 years B.P.Sold for (Inc. bp): £124
Restrung using graduated and polished Mammuthus primigenius bone beads of roughly spherical form. 250 grams, 66 cm long
UK gallery, early 2000s. -
Natural History - Fossil Pine Cone
Eocene Period, circa 55-33 million years B.P.Sold for (Inc. bp): £78
An agatized Dicotaledon fruit specimen. 17 grams, 42 mm
From the Western Sahara Desert, Morocco. Acquired 1950s-1960s. From an old Bristol, UK, palaeontological collection. -
Natural History - Fossil Diplomystus Fish
Eocene Period, circa 58 million years B.P.Sold for (Inc. bp): £104
A Diplomystus sp. fossil fish on a rectangular matrix. 439 grams, 20.7 cm
From Wyoming (Green River Formation), USA. From an old Bristol, UK, collection.
Seasonally some 58 million years ago, in the Green River region of Wyoming, torrential rains fell in the mountains. They flowed down the mountain sides, forming wide shallow lakes in the valley below. During the dry season, these lakes would dry up due to evaporation (as happens in certain parts of Africa today). Millions of fish died in this short period of time. This climatic cycle happened over a 20-thousand-year period. Layer upon layer of mud entombed all these fish. At a much later date, volcanic activity uplifted this area to expose the fossils.
