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齿菊石目.
齿菊石目(学名:Ceratitida)是头足纲下的一个目。大部分外卷/半外卷,表现为盘状,大多具有横肋和壳饰,后期的一些种类转为内卷。缝合线绝大多数为齿菊石型,具有光滑的鞍部和锯齿状的叶。
本目包括以下超科:
- 齿菊石超科 Ceratitoidea
- Choristocerataceae
- 环齿菊石超科 Clydonitaceae
- Danubitaceae
- 狭那菊石超科 Dinaritaceae
- Lobitaceae
- 米克菊石超科 Meekocerataceae
- Megaphyllitaceae
- Nathorstitaceae
- 诺利菊石超科 Noritaceae
- 耳菊石超科 Otocerataceae
- Pinacocerataceae
- Ptychitaceae
- Sagecerataceae
- 粗菊石超科 Trachycerataceae
- 隆脊菊石超科 Tropitaceae
- 外盘菊石超科 Xenodiscaceae
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