齒菊石屬（學名：Ceratites）是生存於三疊紀的一屬菊石，生活在淺海中。其外殼反旋，並有一寬闊的核心和扁平的腹。側面有突出、間距很大的肋條，肋條端為腹緣上的結節。緊密的縫合線有著十分特別的結構：朝前的為光滑而圓的褶皺，朝後的則是齒狀褶皺。[2]
下屬物種
本屬包括以下物種：[1]
- Ceratites (Austroceratites)
- Ceratites (Cycloceratites)
- Ceratites altecostatus
- Ceratites anceps
- Ceratites angularis
- 雙斑齒菊石 Ceratites bipunctatus
- Ceratites bispinosus
- Ceratites boetus
- Ceratites dimorphus
- Ceratites disculus
- Ceratites glaber
- Ceratites hauerianus
- Ceratites inflatus
- Ceratites infundibuliformis
- Ceratites irregularis
- Ceratites karstenii
- Ceratites multinodosus
- Ceratites murchisonianus
- Ceratites nodosus
- Ceratites patella
- Ceratites planus
- Ceratites pseudovindelicus
- Ceratites reiflingensis
- Ceratites sagitta
- Ceratites semiornatus
- 簡齒菊石 Ceratites simplex
- Ceratites sondershusanus
- Ceratites sulcifer
- Ceratites tuberosus
- Ceratites weaveri
- Ceratites wynnei
參考文獻
外部連結
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