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・ Sonning Backwater Bridges
・ Sonning Bishop's Palace
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・ Sonning Cutting
・ Sonning Cutting railway accident
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Sonniniidae
・ Sonnino
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・ Sonntag (song)
・ Sonntag aus Licht
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・ Sonntag, Austria
・ Sonntagberg
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・ Sonntagskreis


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Sonniniidae : ウィキペディア英語版
Sonniniidae

The Sonniniidae comprise a diverse family of Middle Jurassic ammonites, (order Ammonitida), ranging from those with stout evolute shells to those whose shells are sharply rimmed, oxyconic. The keel, which runs along the middle of the venter, is typically hollow. Sutures vary from simple to complex. Aptychus is shiny with coarse folds (Cornaptychus).
The Sonniniidae are included in the Hildocerataceae. Most lived during the middle Bajocian stage. Distribution is worldwide except for boreal.
Genera include ''Sonninia'', type, ''Dorsetensia'', ''Fissilobiceras'', ''Fontannesia'', ''Guhsania'', and Pelekodites''.
==Distribution==
Argentina, Canada, China, Germany, Hungary, Morocco, Saudi Arabia, Spain, the United Kingdom.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「Sonniniidae」の詳細全文を読む



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