Fossilized Jurassic Ammonite in Black Shale Matrix

Western Europe, Stuttgart, Germany, Holzmaden Black Shale Formation, Jurassic period, ca. 200 million years ago. A gorgeous and large ammonite shell within a large stone slab that not only fossilized

Holzmaden, Germany, Jurassic (180 million years old); Two fossil ammonites (large: Harpoceras, small: Dactylioceras) on black matrix. Several partial ammonites on reverse. Greatest length: 12" (27.94c

North America, United States, South Dakota, Pennington County, Cheyenne River, Pierre Shale Formation, Lower Cretaceous, 100.5 to 66 million years ago. A superb, fossilized ammonite of the Placenticer

Northwestern Europe, England, Weymouth, Lower Oxfordian / Kimmeridgian Formation, Late Jurassic, ca. 163.5 to 157.3 million years ago. A stunning fossil from a carnivorous fish, Thrissops, within a la

Western Europe, Germany, Jurassic period, ca. 183 to 175.6 million years ago. A superb ammonite fossil (Arietites sp.) with excellent shell structure - prominent ribs and some suture patterning! The s

Ancient Seas, North America, New York, Orleans County, Rochester Shale Formation, Lower Silurian, ca. 425 million years ago. This is a fine pair of fossilized trilobites within separate stone matrices

Fine and very attractive Fossilized whole Ammonite. Jurassic era, found in Scunthorpe England. Excellent Condition. 23cm x 20cm x 6cm deep.

**Originally Listed At $500** East Africa, Madagascar, Jurassic to Cretaceous period, ca. 200 to 66 million years ago. A superb, fossilized ammonite that is fully excavated from the sediment with a lo

7 1/2" Shale Matrix with Multiple Ammonite Fossil Inclusions

(lot of 2) Fossilized ammonite specimens, Madagascar, each mounted on a black marble base, largest specimen: approx 5"h, 4.75"w, largest overall: approx 8 3/8"h, 4.75"w, 3.5"d, 6.75lbs total Start Pri

This is 7.5"x 11" piece of black shale contains the fossil imprint of a Keichousaurus, a marine reptile from the Triassic/Jurassic period. First discovered in 1957 in China, this particular specimen a

The one piece carved seal engraved 'Longford' on the matrix, measures 3 inches. Provenance: The Joseph Candioto Trust. We ship in-house for all items with the exception of very large and or very fragi

Africa, Madagascar, ancient seas, ca. 400 million years ago. A tall group of ammonites and other ancient shells fossilized in a hardened grey matrix. The ammonites range in color from a rich reddish b

Prehistoric Dinosaur Crystalize Fossil Egg Cretaceous Jurassic World This Particular Specimen Has Been Carefully Cleaned With Matrix Cut A Unique Piece Of Cutting Shape This Is In Perfect Condition We

Middle Jurassic Period, circa 168 million years B.P. A Graphoceras concavum ammonite in a matrix from the Bajocian Stage, Inferior Oolite, Concavum Zone. 1.15 kg, 10 cm height (3 3/4 in.). From Burton

Middle Jurassic, Inferior Oolite, Aalenian Stage, 170 million years BP. A group of two fossil ammonites on matrix, one Graphoceras sp. and the other possibly Leioceras sp., in old white card trays, on

Jurassic Period, circa 180 million years B.P. A group of Gagaticeras sp. fossil ammonites in an oval-shaped pebble. 770 grams, 14.2 cm (5 1/2 in.). From Lower Jurassic, Lower Lias, Yorkshire. From a L

prehistoric, large grouping of fossilized nautilus and orthoceras shells encased in rock matrix, with acrylic stand, 26 x 16 in. - Provenance: Collection of Sandra Manheimer, Cary, North Carolina

Jurassic Period, circa 180-185 million years B.P.. Presenting an Amaltheus stokesi fossil ammonite in a matrix, together with other fossil inclusions. 1.2 kg, 17.5 cm (6 7/8 in.). From Hawsker, North

Jurassic Period, 199-145 million years BP. A fossil ammonite in limestone matrix, upper face polished for display. 707 grams, 13.5cm (5 1/4"). From an old Hampshire collection; from Jurassic Coast, Ly

**Originally Listed At $650** Ancient Seas, North America, South Dakota, Pennington County, Cheyenne River, Pierre Shale Formation, Cretaceous Period, ca. 83.6 to 72.1 million years ago. A collection

Lower Jurassic Period, 199-175 million years BP. A group of Arnioceras ammonites in a trapezoidal matrix slab. 816 grams, 13cm (5"). From an old Hampshire collection; from Jurassic Coast, Lyme Regis,

Jurassic Period, 200-145 million years BP. A cut and polished matrix containing a fossil ammonite showing the internal chambers and crystal formation. 562 grams, 13.5cm (5 1/4"). From a Lincolnshire,

Middle Jurassic Period, c.150 million years BP. A free-standing fossil ammonite in a sympathetically cut stone matrix. 3.1 kg, 18cm (7"). Property of a Hertfordshire lady; by inheritance; ex David Mil