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Noritaceae is an extinct superfamily of cephalopods belonging to the Ammonite order Ceratitida. The Noritaceae, defined by Karpinsky in 1889, combines ceratitids with "typically smooth, more or less discoidal shells with rounded or truncate peripheries and ceratitic sutures,...." Keeled or ribbed offshoots may have simpler or more complex sutures. == Taxonomy== The Noritaceae as revised (Tozer 1981) is composed of the Noritidae, Inyoitidae, Lanceolitidae, Ophiceratidae, Stephanitidae, Ussuriidae Noritidae, not Noritidea, is the type family of the Noritaceae and may have been derived from the Dieneroceratidae through the Xenoceltitidae. The Inyoitidae is based on the Inyoitinae which is removed from the Xenoceltitidae and elevated in rank. The Lanceolitidae, containing Lanceolites as the sole representative, was included in the Hedenstroemiidae as the Lanceolitinae. The Ophiceratidae is removed from the Otocerataceae, the Stephanoceratidae from the Ceratitaceae. The Ussuriidae is a small family retained in the Noritaceae. 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「Noritaceae」の詳細全文を読む スポンサード リンク
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