無管角石
無管角石（學名：），又名阿圖角石、阿固角石，是一屬已滅絕的鸚鵡螺類。為無管角石科下唯一的一屬。牠們可能生活在相對更深的水域中，其壓縮的殼呈流線型以便遊動更快。[1]
| 無管角石屬 化石时期：白堊紀–中新世 | |
|---|---|
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| 無管角石的化石 | |
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| 無管角石（下）和可可爾鸚鵡螺（上）的復原圖 | |
科学分类  | |
| 界： | 动物界 Animalia |
| 门： | 軟體動物門 Mollusca |
| 纲： | 頭足綱 Cephalopoda |
| 目： | 鸚鵡螺目 Nautilida |
| 科： | †無管角石科 Aturiidae Chapman, 1857 |
| 属： | †無管角石屬 Aturia Bronn, 1838 |
| 種 | |
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見內文 | |
物種[2]
- Aturia (Aturia)
- Aturia (Brazaturia)
- Aturia (Nilaturia)
- Aturia (Sphenaturia)
- Aturia alabamensis
- Aturia alaskensis
- Aturia angustata
- Aturia aturi
- Aturia berryi
- Aturia brazoensis
- Aturia brueggeni
- Aturia caroliameghinoi
- Aturia clarkei
- Aturia colombiana
- Aturia coxi
- Aturia cubaensis
- Aturia dickersoni
- Aturia felschi
- Aturia garretti
- Aturia grandior
- Aturia gujaratensis
- Aturia kerniana
- Aturia laticlavia
- Aturia lotzi
- Aturia luculoensis
- Aturia mackayi
- Aturia matsushitai
- Aturia myrlae
- Aturia narica
- Aturia panamensis
- Aturia peruviana
- Aturia praeziczac
- Aturia richardsi
- Aturia rovasendiana
- Aturia somaliensis
- Aturia stansburiensis
- Aturia triangula
- Aturia turneri
- Aturia vanuxemi
- Aturia yokoyamai
- Aturia ziczac
參考文獻
- Walker, Cyril; Ward, David. . Smithsonian Handbooks revised, illustrated. Dorling Kindersley. 2002: 140. ISBN 0789489848.
- . [2018-05-13] （英语）.
外部連結
- Aturia in the Paleobiology Database
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