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Article: Phragmoteuthida (Cephalopoda: Coleoidea) from the Lower Jurassic of Dorset, England

Publication: Palaeontology
Volume: 49
Part: 3
Publication Date: May 2006
Page(s): 673 684
Author(s): Desmond T. Donovan
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How to Cite

DONOVAN, D. T. 2006. Phragmoteuthida (Cephalopoda: Coleoidea) from the Lower Jurassic of Dorset, England. Palaeontology49, 3, 673–684.

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Phragmoteuthida from the Lower Jurassic (Upper Sinemurian) of Dorset, England, are fully described for the first time. Two species are recognized and described: Phragmoteuthis montefiorei (J. Buckman) and P. huxleyi sp. nov. Phragmocones have an apical angle of between 20 and 30 degrees, and relatively few chambers compared with belemnoids. The conotheca is multi-layered. The siphuncle is thick-walled. The pro-ostracum is long and three-lobed as in the Triassic species. Arms are short and bear pairs of slightly curved hooks. Shell and siphuncle structure do not indicate a close relationship with other coleoids.
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