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・ Gomphidiaceae
・ Gomphidius
・ Gomphidius glutinosus
・ Gomphidius largus
・ Gomphidius maculatus
・ Gomphidius oregonensis
・ Gomphidius roseus
・ Gomphidius subroseus
・ Gomphidius viscidus
・ Gomphillaceae
・ Gomphillus
・ Gomphocarpus
・ Gomphocarpus fruticosus
・ Gomphocarpus physocarpus
・ Gomphocarpus purpurascens
Gomphoceras
・ Gomphocerinae
・ Gomphocerini
・ Gomphocerippus
・ Gomphodesmidae
・ Gomphodontia
・ Gomphodontosuchinae
・ Gomphodontosuchus
・ Gomphogaster
・ Gompholobium
・ Gompholobium ecostatum
・ Gompholobium glabratum
・ Gompholobium grandiflorum
・ Gompholobium huegelii
・ Gompholobium latifolium


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Gomphoceras : ウィキペディア英語版
Gomphoceras


''Gomphoceras'' is a questionable nautiloid cephalopod genus assigned to the Oncocerida. The family to which it might belong is undetermined.
''Gomphoceras'', named by Sowerby in 1839, is generally short but rapidly expanding, straight to slightly endogastric, with a gibbous body chamber such that all sides are convex. The aperture as vertically transverse, with a hyponomic sinus on a low spout-like process and a larger rounded dorsal sinus connetected above.
''Tetrameroceras'' and ''Trimeroceras'', both oncocerids, are similar in general form, but have more complex apertures.
==References==

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抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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