Cobble Creek: Small Proetid Trilobite Fossil on Matrix from Morocco.

Cobble Creek: Small Proetid Trilobite Fossil on Matrix from Morocco.

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Cobble Creek: Small Proetid Trilobite Fossil on Matrix from Morocco.

Nicely prepared Proetid trilobites on matrix. These are from the Anti-Atlas Mountain region in Morocco. These are very common, small trilobites from Morocco. The preparation on these little bugs are pretty good. Some minor repairs may be found on some. Good starter fossil!

This listing is for one 1 trilobite on matrix. The trilobite will range in size from 1/2" to 1" inches. The matrix is a little larger range, 1" - 2".

Family: Proetidae
Species: Gerastos
Location: Anti-Atlas Mountains
Country of Origin: Morocco
Age: Devonian

Looking for more trilobites? Check out our other listings for trilobites in different sizes and quantities:

Large Trilobites (2" - 3 1/2"):
25 Pack:
10 Pack:
3 Pack:

Small Trilobites (1 1/2 to 2 1/2"):
25 Pack:
5 Pack:
1 Pack:

Tiny Trilobites (1/4" - 1/2"):
25 Pack:
10 Pack:
5 Pack:

Looking for other fossils? Check out our fossil section within our store! (
We have Ammonites, Trilobites, Brachiopods, Megalodon Teeth and more!

From wikipedia:

Trilobites ( /ˈtraɪləˌbaɪt, ˈtrɪ-, -loʊ-/;[4][5] meaning "three lobes") are a fossil group of extinct marine arachnomorph arthropods that form the class Trilobita. Trilobites form one of the earliest-known groups of arthropods. The first appearance of trilobites in the fossil record defines the base of the Atdabanian stage of the Early Cambrian period (521 million years ago), and they flourished throughout the lower Paleozoic era before beginning a drawn-out decline to extinction when, during the Devonian, all trilobite orders except the Proetids died out. Trilobites disappeared in the mass extinction at the end of the Permian about 252 million years ago. The trilobites were among the most successful of all early animals, roaming the oceans for over 270 million years.[6]

By the time trilobites first appeared in the fossil record, they were already highly diversified and geographically dispersed. Because trilobites had wide diversity and an easily fossilized exoskeleton, they left an extensive fossil record, with some 17,000 known species spanning Paleozoic time. The study of these fossils has facilitated important contributions to biostratigraphy, paleontology, evolutionary biology, and plate tectonics. Trilobites are often placed within the arthropod subphylum Schizoramia within the superclass Arachnomorpha (equivalent to the Arachnata),[7] although several alternative taxonomies are found in the literature.

Trilobites had many lifestyles; some moved over the sea bed as predators, scavengers, or filter feeders, and some swam, feeding on plankton. Most lifestyles expected of modern marine arthropods are seen in trilobites, with the possible exception of parasitism (where scientific debate continues).[8] Some trilobites (particularly the family Olenidae) are even thought to have evolved a symbiotic relationship with sulfur-eating bacteria from which they derived food.[9]

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Reviews (2)


super happy with my little guy

So many beautiful specimens to choose from! Made a great little showcase for my fossil display. Going through this box was like Christmas morning. The more I dug the cooler stuff I found! I would recommend this seller again!

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