Loading, please wait...

Use mousewheel to zoom in and out, click to enlarge

Details

LOT 1855

Natural History - Cut and Polished Fossil Ammonite

JURASSIC PERIOD, 199-145 MILLION YEARS B.P.

3 3/4 - 3 7/8 in. (172 grams total, 95-97 mm).

A pair of cut and polished fossil ammonite halves, each displaying the gas chambers; possibly Cleoniceras sp. [2, No Reserve]

Provenance

From Madagascar.
Collected between 1930 and 1960.
From the collection of the palaeontologist R Gledhill.

CONDITION

VETTING:

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.

LOT 1855

Natural History - Cut and Polished Fossil Ammonite

Sold for (Inc. bp): £46

Print page

RELATED LOTS

  • Natural History - Cave Bear Paw
    Natural History - Cave Bear Paw
    Devensian Period, 110,000-12,000 years B.P.

    Estimate: £600 - 800 (+bp*)

    Opening Bid: £333

    A fossil cave bear paw including the claws and bones held together by an internal metal frame. 608 grams, 33 cm



    Ex Lincolnshire, UK, collection.

    Lot Details

  • Natural History - Knightia Fossil Fish
    Natural History - Knightia Fossil Fish
    Eocene Period, 56-33 million years B.P.

    Sold for (Inc. bp): £52

    A pair of Knightia alta fossil fish in a matrix. 336 grams, 12.6 x 11 cm



    From Wyoming, Green River Formation, U.S.A. Acquired during the 1980s. From the Pradi Collection, Boston, U.S.A.

    Seasonally, some 56 million years ago, in the Green River Region of Wyoming, torrential rains fell on the mountains. The rain flowed down the mountain sides, forming wide shallow lakes in the valley below. During the dry season, these lakes evaporated (similar to 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 was deposited over these years, entombing huge numbers of fish. At a much later date volcanic activity uplifted this area to expose their fossils.

    Lot Details

  • Natural History - Chalcedony Mineral Specimen
    Natural History - Chalcedony Mineral Specimen

    Sold for (Inc. bp): £5

    A blue chalcedony mineral specimen showing 'veined' layers. 148 grams, 74 mm



    From Ysterputs Mine, Noordoewer / Reg, Karas, Namibia. Private collection, Munster, Germany.

    Lot Details

Stay up-to-date with the latest from TimeLine Auctions by joining our mailing list