Bundenbach is an Ortsgemeinde – a municipality belonging to a Verbandsgemeinde, a kind of collective municipality – in the Birkenfeld district of Rhineland-Palatinate, Germany. It belongs to the Verbandsgemeinde Herrstein-Rhaunen, whose seat is in Herrstein.
For its roughly 400-million-year-old fossils of Placodermi and other creatures from the Devonian, Bundenbach is said to be a world-class fossil Lagerstätte.
Wikipedia https://en.wikipedia.org/wiki/Bundenbach
Coordinates 49°50'31.593" N 7°22'37.784" E