Fossil Sponge - Astraeospongia meniscus - 419,000,000 Years Old rome Known to geology as the

Known to geology as the Green River formation

It is known from two species Nematonotus bottae and Nematonotus longispinus of which the latter’s fin is more prominent

Originally part of the Third Edition of the Mini Museum

551 years old

A small information card is included

Fossil Sponge - Astraeospongia meniscus - 419,000,000 Years Old rome Known to geology as theSponges 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