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・ Sphenarches anisodactylus
・ Sphenarches bifurcatus
・ Sphenarches bilineatus
・ Sphenarches caffer
・ Sphenarches cafferoides
・ Sphenarches nanellus
・ Sphenarches ontario
・ Sphenarches zanclistes
・ Sphenarium
・ Sphenarium purpurascens
・ Sphenella
・ Spheneria
・ Sphenic number
・ Spheno-maxillary fossa
・ Sphenobaiera
Sphenocephalus
・ Sphenocichla
・ Sphenoclea
・ Sphenocoelus
・ Sphenocondor
・ Sphenocorona
・ Sphenocrates
・ Sphenocrates aulodocha
・ Sphenocrates neptis
・ Sphenodesme
・ Sphenodiscus
・ Sphenodontidae
・ Sphenoethmoidal recess
・ Sphenoethmoidal suture
・ Sphenofrontal suture


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Sphenocephalus : ウィキペディア英語版
Sphenocephalus

''Sphenocephalus'' is an extinct genus of ray-finned fish that lived during the Cretaceous period. Fossils have been found in England and Italy.
''Sphenocephalus'' was about long, with a rather large head, and may have resembled a modern black bass in appearance. It was one of the earliest fish to have the pelvic fins placed beneath th pectoral fins, a common feature in modern fish that improves swimming manoeuvrability. Like the modern trout-perches, it possessed a mixture of modern and primitive features, and it was probably one of the earliest perciform fish.
==References==



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「Sphenocephalus」の詳細全文を読む



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