Fossil Sponge - Astraeospongia meniscus - 419,000,000 Years Old rockinaboxtethys was a byproduct of the

was a byproduct of the mammalian explosion of diversity in the Eocene

Medium - Approximately 1

Each earring pair is set into a fine sterling silver backing with dangle hooks of the same material

60" Woolly Rhinoceros Tooth recovered from Siberia

Every piece is a unique pattern of fossil formation

Fossil Sponge - Astraeospongia meniscus - 419,000,000 Years Old rockinaboxtethys was a byproduct of 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