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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Delphyodontos ： ウィキペディア英語版 Delphyodontos ''Delphyodontos dacriformes'' is a prehistoric holocephalid fish from the early Carboniferous-aged Bear Gulch Limestone Lagerstätte, in Montana. Its fossils consist mainly of aborted fetuses or newly hatched young.〔Lund, R. 1980. Viviparity and intrauterine feeding in a new holocephalan fish from the Lower Carboniferous of Montana. Science, 209: 697‑699.〕 Sharp teeth and fecal matter in the fossils suggests that ''Delphyodontos'' practiced intrauterine cannibalism,〔 like some modern sharks, such as gray reef sharks. ==Appearance== According to the fossils, the recently born would have resembled tadpoles with small, but sharp beaks. Because of the evidence suggesting intrauterine cannibalism, ''D. dacriformes'' is assumed to have been carnivorous, though, besides siblings, it is unknown what other organisms they would have eaten. 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「Delphyodontos」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.