Description In 1811, while exploring the cliffs near Lyme Regis, England, 12-year-old Mary Anning made the find of a lifetime. There in the rocks was the skeleton of a strange creature. Mary's find was later named Ichthyosaurus, a reptile that lived more than 250 million years ago. Anning went on to have a long career finding and identifying dinosaur fossils. However, her work often went unrecognized by male scientists of the time, and she received little credit until long after her death. Learn about Mary Anning's perseverance and her important discoveries in paleontology.