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Ptychopariida is a large, heterogeneous order of trilobite containing some of the most primitive species known. The earliest species occurred in th...

Genuine, museum-quality, Ophiuroidea Brittle Star Fossil. Ophiura ophiura or the serpent star is a species of brittle star in the order Ophiurida. ...

Trilobites, an early arthropod relative of spiders, horseshoe crabs, and scorpions, preserved in this level of detail only occurred as a result of ...

Ptychopariida is a large, heterogeneous order of trilobite containing some of the most primitive species known. The earliest species occurred in th...

This museum quality, natural ammonite cluster from Madagascar comes from the Cretaceous period. It is a free standing cluster making for easy disp...

Ptychopariida is a large, heterogeneous order of trilobite containing some of the most primitive species known. The earliest species occurred in th...

Genuine, museum-quality, Drotops Spiny Trilobite Fossil specimen in matrix. Drotops is a massive phacopid trilobite from Morocco, sometimes reachin...

Ptychopariida is a large, heterogeneous order of trilobite containing some of the most primitive species known. The earliest species occurred in th...

This museum quality cleaniceras ammonite cluster from Madagascar comes from the Cretaceous period. It is a free standing cluster making for easy di...

This is an elegant, bright Acadoparadoxides trilobite. There are several species of Acadoparadoxides from this formation. Acadoparadoxides is an e...

Ptychopariida is a large, heterogeneous order of trilobite containing some of the most primitive species known. The earliest species occurred in th...

Pyritized Ammonite From Moscow, Russia    A slice of a fossilized pseudomorphic ammonite that has been replaced molecule by molecule by metallic py...

Museum quality, 8" tall stone containing many small ammonite fossils. The ammonites are of the species Promicroceras marstonense and are Lower Jura...

The fossilized shells of Ammonites are typically spiral-shaped, very much like that of the Nautilus. However, around 170 million years ago, these s...

The fossilized shells of Ammonites are typically spiral-shaped, very much like that of the Nautilus. However, around 170 million years ago, these s...

Trilobites, an early arthropod relative of spiders, horseshoe crabs, and scorpions, preserved in this level of detail only occurred as a result of ...

Trilobites, an early arthropod relative of spiders, horseshoe crabs, and scorpions, preserved in this level of detail only occurred as a result of ...

A gorgeous Indonesian Crab fossil. Beautiful polish, cleaned with care. Delicate and fascinating details. This specimen will make a unique addition...

Fossilized Phylloceras Ammonite from Madagascar. This large, stunning ammonite measures 6 inch at its widest point and has been hand polished to re...

Ptychopariida is a large, heterogeneous order of trilobite containing some of the most primitive species known. The earliest species occurred in th...

The fossilized shells of Ammonites are typically spiral-shaped, very much like that of the Nautilus. However, around 170 million years ago, these s...

This museum quality cleaniceras ammonite cluster from Madagascar comes from the Cretaceous period. It is a free standing cluster making for easy d...

Museum-quality, fossilized and calcified ammonite shell with an iridescent, opalized shimmer displaying hints of vibrant red. The fossilized shells...

Ptychopariida is a large, heterogeneous order of trilobite containing some of the most primitive species known. The earliest species occurred in th...