@Tapirlord I will need to consult my books later. My understanding was that C. dimorpha was supposed to have larger flowers with longer teeth. I was also of the impression that C. dimorpha occurred further east from near Tallaganda to the coast, however that doesn't mean much to a plant. @TobiasHayashi I recall you have helped out on some discussions about C. dimorpha in the past. Do you have any thoughts on these plants?
I'd call these Caladenia ustulata - teeth can be fairly long on C ustulata at times. The flowers don't look super big and the labellum has a purple tip and the sepals and petals have brownish tips.
From the photos it appears the tepals have brownish tips with the exterior having brownish glands, which seems to fit more with C ustulata than C dimorpha. I am not sure of the dimensions of the flower, but it also appeared from the photos to be smaller than I would have expected for C dimorpha.