Ammonites were early mollusks. These marine animals had no vertebrae and were protected by a hard shell (usually coiled) made from calcium. Fast-moving predators, they ate other animals in the sea. They were cephalopods. These animals were protected by a shell (usually spiral-coiled) that contained many air filled chambers, called phragmocones; the animal lived only in the outer chamber. The opening of the shell is called the aperture. The walls of each chamber are called septa; these walls were penetrated by a ventral tubelike structure called a siphuncle that probably regulated the air pressure, allowing the ammonite to float. No surpises! Image is actual item you will receive. FREE UPS Ground Shipping within the Continental United States! To all our Alaska, Canada and Hawaii customers: you will be notified of any applicable shipping charges prior to processing your order for approval. |
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| Amalteus Ammonite in matrix.
Overall Size 4.25" X 4" |
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| A compressed, involute shell forms a distinctive frilly suture design. Nice calcite displayed in chamber opening. Display stand included.
Overall Size 3.25" X 2.5" |
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| Grasping tentacles and eyes protruded from the opening on the outside of Euhoplites' coiled shell. The animal swam through the water in search of food—pushed along by a system of jet propulsion. A very fascinating fossil for it's size, Euhoplites has a deeply rippled shell pattern that more resembles a monster truck tire than an aquatic mollusk.
Overall Size 4.5" H X 6" W -- Weight 3 lbs |
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| A compressed, involute shell forms a distinctive frilly suture design. Shades of gold, beige and caramel. Some opalization. Display stand included.
Overall Size: 3.75" X 3.25" |
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| Great interior detail, exterior has frilly suture detail with some opalization.
Size of each halve 2.5" X 2.5" |
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| Grasping tentacles and eyes protruded from the opening on the outside of Euhoplites' coiled shell. The animal swam through the water in search of food—pushed along by a system of jet propulsion. A very fascinating fossil for it's size, Euhoplites has a deeply rippled shell pattern that more resembles a monster truck tire than an aquatic mollusk.
Overall Size 4" H X 5" W -- Weight 3 lbs |
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| A good study piece with interior chamber detail.
Overall Size 3.5" X 2.75" |
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| Grasping tentacles and eyes protruded from the opening on the outside of Euhoplites' coiled shell. The animal swam through the water in search of food—pushed along by a system of jet propulsion. A very fascinating fossil for it's size, Euhoplites has a deeply rippled shell pattern that more resembles a monster truck tire than an aquatic mollusk.
Overall Size 5" H X 6" W -- Weight 3.5 lbs |
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| Grasping tentacles and eyes protruded from the opening on the outside of Euhoplites' coiled shell. The animal swam through the water in search of food—pushed along by a system of jet propulsion. A very fascinating fossil for it's size, Euhoplites has a deeply rippled shell pattern that more resembles a monster truck tire than an aquatic mollusk.
Overall Size 5.5" H X 7" W -- Weight 5 lbs |
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| A compressed, involute shell forms a distinctive frilly suture design. Shades of brown and caramel. Some opalization. Display stand included.
Overall Size: 4.25 X 5" |
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| This Late Cretaceous genus grew to a considerable size. This Ammonite was perhaps the fastest swimmer, jetting through the water in pursuit of prey, or fleeing from predators.
Overall Size 6.25" H X 7.25" WX -- Weight 3.5 bs |
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| Good interior detail and well-defined sutured exterior.
Size of each halve 4.25" X 5.5" |
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| From the Lower Cretaceous these open-coiled Ammonites are were excavated near Agadir, Morocco. Display stand included.
Open Ammonite Size: 2-1/8" X 3-1/8" in length. |
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| From the Lower Cretaceous these open-coiled Ammonites are were excavated near Agadir, Morocco. Nice free standing Ammonite.
Open Ammonite Size: 2" X 4" in length. |
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| This Ammonite is from the Late Cretaceous period. These Ammonites were thought to be good swimmers. Great free-standing specimen.
Overall Size 6.5" H X 4.5" W -- Weight 3 lbs |
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| Large Pavlovia Ammonite with great detail. Display stand included.
Size 4" X 4.75" |
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