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Oppeliinae is a subfamily within the Oppeliidae, a family of Jurassic ammonites characterized by forms that are mainly oxyconic, compressed with sharp venters, in the adult and with keeled inner whorls. Sutures are complex, consisting of a long series of evenly graded lobes and saddles with finely frilled endings.〔Treatise on Invertebrate Paleontology Part L ''L274'',(Ammonoidea)〕 The Oppeliinae gave rise to the Hecticoceratinae in the early Bathonian stage, near the middel of their range and to the Taramelliceratinae, in the late Callovian, near the end of their tange, which in turn gave rise to the Streblitinae in the early Kimmeridgian and to the Haploceratidae in the late Kimmeridgian.〔Classification of Jurassic Ammonitina, D.T. Donovan, et al. Systematics Assoc no 18〕 Distribution is worldwide, from the Middle Jurassic, except for Boreal regions. ==List of Genera== The Oppeliinae includes the following genera,〔 listed in order of appearance. :''Bradfordia'' :''Oppelia'' :''Oxycerites'' :''Paralcidia'' :''Strugia'' :''Trimargina'' :''Magharina'' :''Oecostraustes'' :''Stregoxites'' 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「Oppeliinae」の詳細全文を読む スポンサード リンク
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