Literature References

Authors	Year	Title
D. T. Donovan, Callomon, J. H., Howarth, M. K.	1981	Classification of the Jurassic Ammonitina.
D. T. Donovan, Toll R. B.	1988	The gladius in coleoid (Cephalopod) evolution (pp. 89-101).
D. T. Donovan	1994	Acanthoteuthis Wagner in Munster, 1839 and Kelaeno Munster, 1842 (Mollusca, Cephalopoda): proposed conservation of usage.
P. Doyle, Donovan, D. T., Nixon, M.	1994	Phylogeny and systematics of the coleoidea.
D. T. Donovan	1995	A specimen of Trachyteuthis (Coleoidea) with fins from the upper Jurassic of Solnhofen (Bavaria).

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