Backhouse, 1987
From dinoflaj3
Backhouse, J., 1987: Microplankton zonation of the Lower Cretaceous Warnbro Group, Perth Basin, Western Australia. In: Jell, P.A. (editor), Studies in Australian Mesozoic palynology; Memoir of the Association of Australasian Palaeontologists, no.4, p.205-226.