According to Pindar, he and several other members of his family went to Iolcus to intercede with Pelias on behalf of Jason.[4]Pausanias mentioned him among those to whom the restoration of the Olympic Games was ascribed.[5] A part of Elis was thought to have been named Amythaonia after him.[6]
Pindar, The Odes of Pindar including the Principal Fragments with an Introduction and an English Translation by Sir John Sandys, Litt.D., FBA. Cambridge, MA., Harvard University Press; London, William Heinemann Ltd. 1937. Greek text available at the Perseus Digital Library.
Stephanus of Byzantium, Stephani Byzantii Ethnicorum quae supersunt, edited by August Meineike (1790-1870), published 1849. A few entries from this important ancient handbook of place names have been translated by Brady Kiesling. Online version at the Topos Text Project.