Pictures of miocene origin Bivalves From the unrecorded geological site of South India.  Congratulations to our Explorers and advisory geologists/Paleontologists.

Photo Courtesy World Fossil Society

The oyster Crassostrea Sp is one of the commonest fossils found in the  miocene . The calcite shell is thick and survives well after weathering and erosion of the clays and shales in which it is fossilized. It is also sufficiently resilient to have endured transportation by rivers and bio eroded specimens of Crassostrea Sp are often found in estuary-deposited boulder clays .

Photo Courtesy World Fossil Society

Some specimens consist of disarticulated valves oriented both convex-up and convex-down whereas conjoined shells are predominant in number and arranged with different orientations from nearly horizontal to oblique. A few complete shells show a vertical position with the commissural plane more or less perpendicular to the bottom and the ligamental area pointing downwards. Fragmentation and abrasion are scarce, signs of encrustation and bioerosion are rare and occur only on the external surface of few valves.

Photo Courtesy World Fossil Society

Photo Courtesy World Fossil Society

Photo Courtesy World Fossil Society

The trace fossil assemblage described herein is dominated by the ichnogenera Gastrochaenolites and Entobia, which often are accompanied by worm borings such as Maeandropolydora. This assemblage belongs to the Entobia Ichnofacies .

Photo Courtesy World Fossil Society

Riffin T Sajeev & Russel T Sajeev (Photo Courtesy World Fossil Society)