2.9" Clam Fossil Polished Jurassic Madagascar Bivalve Mollusk 150 Million Years Old

Location: Morondava River Basin, Atsimo-Andrefana region, Southwest Madagascar

Weight: 6.1 Ounces

Dimensions: 2.9 Inches Long, 2.1 Inches Wide, 1.3 Inches Thick

The item pictured is the one you will receive. 

Clam Fossil from Madagascar is about 150 million years old, dating from the Jurassic Period.  Clams have a long fossil history, first appearing in the late Cambrian Period, about 510 million years ago. Clams are bivalve mollusks, so-called because their shells consist of two parts called valves.  The valves are attached by a hinge ligament and are opened and closed by two muscles attached to the inside of the shells. Clams are filter feeders that pump water inside their bodies to strain out phytoplankton and other small organisms for food.

Please be aware of the nature of fossils:

Being buried underground for millions of years under immense pressure can be quite rough. Rarely does a fossil emerge perfectly intact; most have undergone some restoration, and some are modified by humans to improve their display. Madagascar's workers do a highly professional job of unearthing and preserving these natural treasures, though natural cracks often appear on the surface. These cracks are part of the fossil's natural charm and are not flaws.