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

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

Weight: 6 Ounces

Dimensions: 2.7 Inches Long, 2.1 Inches Wide, 1.4 Inches Thick

The item pictured is the one you will receive. 

This clam fossil from Madagascar preserves a creature from the Jurassic Period, roughly 150 million years old. Clams are bivalve mollusks—organisms whose shells comprise two distinct valves held together by a hinge ligament and controlled by internal muscles. Their evolutionary record stretches back over 500 million years to the late Cambrian Period, demonstrating remarkable biological stability across deep time. As filter feeders, clams drew water through their bodies to extract nourishment from microscopic plankton and organic matter suspended in ancient seas. The polished finish of this specimen showcases the structural complexity of these resilient creatures, providing a window into the marine ecosystems of the Mesozoic Era and the adaptive strategies that allowed bivalves to persist through hundreds of millions of years of Earth's history.

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.