"Gem" Ammonite in Matrix Placenticeras costatum

SUPERB PRECIOUS GEM AMMOLITEPlacenticeras costatumUpper CretaceousBearpaw Formation, Alberta, CanadaSo beautiful are these rare ammonite fossils that the transformed material of their shell lining has

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

Très grande ammonite cornée sur matrice Very Large Horned Ammonite on Matrix Kranosphinctes sp. Late Jurassic Morondava River Basin, Atsimo-Andrefana Region of Toliara, Madagascar A fine, ma

Ammonite sculpturale sur matrice Sculptural Ammonite on Matrix Arietites bucklandi Jurassic Dijon, France Ammonites are amongst the most instantly recognizable fossils and, having existed on Earth for

A large, wonderfully preserved, highly colorful Hoploscaphites, ammonite in matrix, sitting atop a large portion of another, much larger example. The peanut-shaped nodule fits back together perfectly.

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

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

Polished Fossil Ammonites Brown Orthoceras Morocco

Ammonite in matrix. Holmzmaden, Germany

Two natural history items, including: Placenticeras ammonite fossil, unearthed near Wasta, South Dakota; together with black tourmaline and quartz specimen; L: 11 1/4" (larger, approx.)

Fossil Ammonite in Matrix Paperweight China

Polished Orthoceras and Ammonites in Matrix Freeform Morocco 20 x 15"

Ammonite in Matrix 1lb 13oz

Fossil Ammonite in Matrix England 14oz

Fossil Ammonite with Matrix Peru 6oz

Ammonite in matrix as found- opalized chocolate tone 250-500 million years old -about 1 1/2 x 1 inch large specimen in matrix- other ammonites in same matrix as well.

Double Ammonite in Matrix Peru 5oz

Fossil Ammonite in Matrix Peru 10oz

Fossil Ammonite in Matrix Peru 6oz

Ammonite on Matrix Peru 10oz

Fossil Ammonite in Matrix Peru 6oz

Fossil Ammonite in Matrix Peru 5oz

Fossil Ammonite in Matrix Peru

Cretaceous Period, 130-60 million years BP. A group of marine fossils comprising: a large ammonite in matrix; a pair of gastropods in matrix; a matrix containing several small bivalves; three very lar