Thysanopeltella (Thysanopeltis) Trilobite & Two Basseiarge - Jorf

This is an association of an unusual Thysanopeltella (Thysanopeltis) and two Basseiarges mellishae trilobites from Jorf, Morocco. The Thysanopeltella is 2.1" long and likely represents an undescribed species. Both Basseiarges (one ventral, one dorsal) are about .9" in length. The shell is actually translucent, so it is taking on the reddish color of the rock below. Restoration is about 4-5% on the Thysanopeltella, one patch on the right side of the tail and then a number of very small patches of shell restoration spread over the surface of the trilobite.

About Trilobites

Trilobites are an extinct class of marine arthropods that thrived for nearly 270 million years, from the early Cambrian to the end of the Permian period (around 521 to 252 million years ago). They are one of the most successful and diverse groups in the history of life, with over 25,000 described species spanning a wide range of sizes, shapes, and ecological niches. Known for their distinctive, segmented exoskeletons, trilobites provide invaluable insights into the evolutionary history of arthropods and the dynamics of ancient marine ecosystems.

More About Trilobites