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Lot 4453W

Opalescent Ammonite in Matrix

Amended
16 May 2018, 10:00 PDT
Los Angeles

US$20,000 - US$25,000

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Opalescent Ammonite in Matrix

Placenticeras meeki
Cretaceous
Bearpaw Formation, Alberta, Canada

Revealed in the dark shale matrix in which it was discovered, a beautifully preserved ammonite displays brilliant greens, reds, gold and even some blue coloration. Blue colors are uncommon in this type of ammonite. Ancestor to the modern chambered nautilus, ammonites have existed for nearly 330 million years, yet few fossil ammonites approach the beauty of specimens from this locality. Exhibiting the brilliant opalescence of the most covetable specimens from the Bearpaw Formation, the present nicely inflated example shimmers in dramatic contrast to the matrix. Ammonite diameter measuring 7 1/2 x 5 3/4in; Matrix measuring 21 x 14 1/2 x 2in

Saleroom notices

Catalogue correction: in the last sentence the body copy the text should read "nicely preserved" rather than "nicely inflated".

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