This name is a synonym of Banksia brevidentata (A.S.George) K.R.Thiele.
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Nuytsia 3: 372 1981.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:916135-1.
This name was in version 1 of The Plant List, record kew-2669087, and has not been changed.