LIMA, Peru - Students from the State University of Puno in southern Peru have discovered the remains of a prehistoric shark near Lake Titicaca, the Ministry of Culture said.

Called "Pucapampella Shark", the creature is believed to be the 400-million-year-old ancestor of today's sharks.

The fossil was unearthed at the paleontological site of Imarrucos, northwest of Titicaca, the world's highest navigable lake, said the ministry.