Trilobite Fossils, Flexicalymene (B GRADE) skeleton The fresh interiors of the

The fresh interiors of the largest fragments exhibit white to beige clasts in a dark gray

Though they are more closely related to coleoids (squid

**The photos on this listing showcase the range and quality the buyer will receive

These specimens measure ~

Trilobite Fossils, Flexicalymene (B GRADE) skeleton The fresh interiors of theThese are real fossilized trilobites (Flexicalymene ouzregui)! Trilobites were an extremely adaptive marine arthropod that first evolved roughly 521 million years ago and rapidly spread across the globe. They diversified into approximately 17,000 species and were one of history's most successful animals existing for over 270 million years before extinction! These 1. 5 3" long INCOMPLETE trilobites date back to the Upper Ordovician and were found in