Fossil Sponge - Astraeospongia meniscus - 419,000,000 Years Old rockinaboxtethys This 12-Specimen version contains a

This 12-Specimen version contains a carefully selected group of items designed to highlight key items within the massive Fifth Edition collection

Medium - Approximately 1

60" Woolly Rhinoceros Tooth recovered from Siberia

Since our earliest days

126–113 Ma

Fossil Sponge - Astraeospongia meniscus - 419,000,000 Years Old rockinaboxtethys This 12-Specimen version contains aSponges 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