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COPE, J. C. W. 1968. Propectinatites, a new Lower Kimmeridgian ammonite genus. Palaeontology, 11, 1, 16–18.
John C. W. Cope Propectinatites websteri gen. et sp. nov., sub-family Virgatosphinctinae, from the Autissiodorensis Zone of the Lower Kimmeridge Clay of Dorset, is described and figured. Dimorphism is recognized in this genus. The Palaeontological Association (Free Access)