Along the Linzersteig -- and in much of the limestone rock of the Dachstein -- are millions of fossils of ancient Megalodon&nbsp...

Dachstein Fossil

Dachstein, Austria | 2017

Along the Linzersteig -- and in much of the limestone rock of the Dachstein -- are millions of fossils of ancient Megalodon sea creatures dating from the Triassic times (roughly 250 million years ago). These horseshoe-shaped bivalve fossils are referred to as Kuhtritte, or "cattle footprints". They are about the size of your hand or larger and are all over the place, oftentimes arranged in the hundreds or thousands across the rock. Photo © copyright by Jack Brauer.

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