This taxon is considered nomen nudum, species not entered
of the valid taxon Placodus
according to the Paleobiology Database.
See the page for Placodus →
Bibliography
Original description
O. Rieppel. 1995. The genus Placodus: systematics, morphology, paleobiogeography, and paleobiology. Fieldiana: Geology, new series 31:1-44
DOI ↗