But the Permian detectives are faced with a host ... especially tortoise-beaked dicynodonts, which likely lived in herds and browsed on vegetation along the riverbanks," said Smith.

While scientists have long puzzled over fossils, the discovery of this cave painting might forever change the perception of paleontology as a field.

The bones belonged to “well-preserved” dicynodonts, or tusked therapsids, which were pre-mammal animals that lived from the ...