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・ Phtheochroides clandestina
・ Phthersigena centralis
・ Phthersigena conspersa
・ Phthersigena insularis
・ Phthersigena melania
・ Phthersigena minor
・ Phthersigena nebulosa
・ Phthersigena timorensis
・ Phthersigena unicornis
・ Phthia
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・ Phthia of Epirus
・ Phthia of Macedon
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Phthinosuchia
・ Phthinosuchus
・ Phthiotic Thebes
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・ Phthirusa
・ Phthirusa pyrifolia
・ Phthisiology
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Phthinosuchia : ウィキペディア英語版
Phthinosuchia

Phthinosuchia is an extinct group of therapsids including two poorly known species, ''Phthinosuchus discors'' and ''Phthinosaurus borrisiaki'', from the Middle Permian of Russia. ''Phthinthosuchus'' is known a partial crushed skull and ''Phthinosaurus'' is known from an isolated lower jaw. The two species have traditionally been grouped together based on their shared primitive characteristics, but more recent studies have proposed that they are more distantly related. ''Phthinosuchus'' is either a carnivorous gorgonopsian relative or an anteosaurian dinocephalian while ''Phthinosaurus'' is either a herbivorous rhopalodont dinocephalian〔 or a therocephalian.
Phthinosuchia was named by American paleontologist Everett C. Olson in 1961, who considered it the most primitive infraorder within Therapsida. A year later Olson named the new infraorder Eotheriodontia and reclassified Phthinosuchia as a subgroup of eotheriodonts, along with the families Biarmosuchidae and Brithopodidae. Each species has been placed in its own family; Phthinosuchidae was named by Soviet paleontologist Ivan Yefremov in 1954 for both ''Phthinthosuchus'' and ''Phthinosaurus'', while Phthinosauridae was named by Leonid Tatarinov in 1974 for ''Phthinosaurus'' alone.
==References==



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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