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(1916) II.—A New Variety of the Ammonite Cœloceras Davæi, from the Lower Lias, Dorset. Geological Magazine, S. 6 Vol. 3 (5) 196-198 doi:10.1017/s0016756800199790

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Reference TypeJournal (article/letter/editorial)
TitleII.—A New Variety of the Ammonite Cœloceras Davæi, from the Lower Lias, Dorset
JournalGeological Magazine
Year1916 (May)Series:Volume6:3
Issue5
PublisherCambridge University Press (CUP)
DOIdoi:10.1017/s0016756800199790
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Mindat Ref. ID264680Long-form Identifiermindat:1:5:264680:4
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Full Reference(1916) II.—A New Variety of the Ammonite Cœloceras Davæi, from the Lower Lias, Dorset. Geological Magazine, S. 6 Vol. 3 (5) 196-198 doi:10.1017/s0016756800199790
Plain Text(1916) II.—A New Variety of the Ammonite Cœloceras Davæi, from the Lower Lias, Dorset. Geological Magazine, S. 6 Vol. 3 (5) 196-198 doi:10.1017/s0016756800199790
In(1916, May) Geological Magazine S. 6 Vol. 3 (5) Cambridge University Press (CUP)
Abstract/NotesQuenstedt described three distinct varieties of Ammonites Davœi, with nine illustrations. They all belonged to the 7 zone of Lower Lias:—1. Ammonites Davœi, whose tubercles are somewhat clavate and with unsymmetrical prorsiradiate ribs.2. A. Davœi enodis is continental. It is a small specimen without tubercles, with fine symmetrical and prorsiradiate ribs.3. A. Davœi nodosissimus is also continental. This variety shows nine large bullate tubercles on each whorl, with close, fine, and symmetrically disposed flexiradiate ribs.


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