Legless crab living 150 million years ago found in Cheia Valley in eastern Romania 
Head of legless crab living in Jerassic Age
It was reported on October 22 by some foreign media that scientists recently discovered a new crab species of Jurassic Age in eastern Romania. These small-sized crabs are peculiar in that they no legs and lived mainly in the cracks of deepwater reefs.
The fossils of this ancient species were found in the 100-feet-high Cheia Valley in eastern Romania whose cylindrical rock structure was originally ancient deepwater covers. This kind of crabs lived at the dinosaur-ruling Jurassic Age about 150 million years ago. Newly named Cycloprosopon Dobrogea, this legless flat-shaped species was 0.5 inch (6 millimeters) long and was usually sheltered in the cracks of reefs. It is not yet possible to prove that these legless crabs and other similar species evolved from shellfish.
Kelly Schweitzer, the geologist in Kent State University, Ohio, America and who is in charge of this research, pointed out that they probably hid in those small crevices of spongiform reefs, which underwater habitat is thought to be the vital environment for ancient shellfish where they could forage for delicious food.
In an interview with a journalist from National Science Foundation Website, Schweitzer claimed that these legless small-sized crabs lived in reefs far down in the sea where they were safe from dinosaurs although ichthyosaurs or aplesiosaurs could still catch them. She emphasized that ancient shellfish is far more sophisticated and abundant than imagined.