The blasting revealed a variety of fossil footprints.

The area is notable because it is the first time that the fossil footprints of a landing pterosaur have been discovered.

The fossil footprints are approximately 140 million years old.

Hitchcock spent the rest of the summer traveling through the Connecticut Valley examining the fossil footprints.

During the periods of recession, dinosaurs and other Jurassic animals walked on the shores, leaving fossil footprints.

Durable as they had been, the fossil footprints, the earliest indisputable evidence of upright walking by human ancestors, are now endangered.

The next year Hitchcock wrote a scientific paper on the fossil footprints of the Connecticut Valley.

The oldest known evidence of tetrapods comes from 395-million-year old fossil footprints found in Zachełmie.

It takes its name from several human fossil footprints.

No other place in the world has fossil footprints of all these different dinosaurs found in a single area.