Fossil Sponge - Astraeospongia meniscus - 419,000,000 Years Old

Sponges are sessile filter feeders that thrive across the world's oceans. First appearing nearly 600 million years ago, sponges are the earliest complex lifeforms on the planet.

This specimen is a complete 1.5-2" Astraeospongia meniscus sponge fossil, preserved in beautiful detail. It was recovered on private land in Tennessee and dates to the Silurian Period over 419,000,000 years ago. Each specimen comes complete with an informational card that serves as certificate of authenticity.