Authors Year Title
Tozer 1969 Xenodiscacean Ammonoids and their bearing on the discrimination of the Permo-Triassic boundary.
Geological Magazine, 106 (4): 348-361, tab.1-2, pl.16; Hertford.
Tozer 1973 The earliest marine Triassic rocks: their definition, ammonoid fauna, distribution and relationship to underlying formations.
In: Logan,A. & Hills,L.V., eds.: The Permian and Triassic Systems and their mutual boundary, Canadian Society of Petroleum Geologists, Memoir 2: 549-556.
Tozer 1979 The significance of the ammonoids Paratirolites and Otoceras in correlating the Permian-Triassic boundary beds of Iran and the People's Republic of China.
Canadian Journal of Earth Sciences, 16 (7): 1524-1532, fig.1-4, tab.1; Ottawa.
Tozer 1980 Triassic Ammonoidea: Classification, Evolution and Relationship with Permian and Jurassic Forms.
Systematics Association Special Volume 18, "The Ammonoidea" (eds. M.R.House & J.R.Senior), 66-100, London  and New York.
Tozer 1981 Triassic Ammonoidea: Geographic and Stratigraphic Distribution.
In: House,M.R. & Senior,J.R. (eds.), "The Ammonoidea", Systematics Association Special Volume 18: 397-431, 5 tab., Academic Press, London, New York