6.2" Eudolalites with Selenopeltis Trilobites and a Machaeridian

Plumulites is a rare, extinct genus of armored, segmented annelid worms (machaeridians) that existed from the Ordovician period to the Early Triassic period (480-250 MYA). They are relatives of the modern-day earthworm, leech, and bristleworm. Many well-preserved specimens have emerged on the market over the last few years.

Trilobites were a very diverse group of extinct marine arthropods. They first appeared in the fossil record in the Early Cambrian (521 million years ago) and went extinct during the Permian mass extinction (250 million years ago). They were one of the most successful of the early animals on our planet: over 25,000 species have been described, filling nearly every evolutionary niche. Due in large part to their hard exoskeletons (shells), they left an excellent fossil record.