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Article: Ammonites of the Liassic family Juraphyllitidae in Britain

Publication: Palaeontology
Volume: 7
Part: 2
Publication Date: July 1964
Page(s): 286 305
Author(s): M. K. Howarth and D. T. Donovan
Addition Information

How to Cite

HOWARTH, M. K., DONOVAN, D. T. 1964. Ammonites of the Liassic family Juraphyllitidae in Britain. Palaeontology7, 2, 286–305.

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The Palaeontological Association (Free Access)


The genus Galaticeras is recorded from the Lower Lias of Britain for the first time. The palaeontology and stratigraphy of Tragophylloceras are revised, ten out of fourteen previously described species being placed in synonymy, while one new one, T. carinatum, is described. Microconch-macroconch pairs are recognized in Tragophylloceras and formally described, this being the first full description of dimorphic pairs in Liassic ammonites.
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