This is supported by fossils of the freshwater `` Odontochelys semitestacea '' or `` half-shelled turtle with teeth '' , from the late Triassic , which have been found near Guangling in southwest China .
Fossils of the freshwater `` Odontochelys semitestacea '' or `` half-shelled turtle with teeth '' , from the later Triassic , have been found in southwest China .