擬阿加尼德角石
擬阿加尼德角石（學名：Pseudaganides）是一屬已滅絕的鸚鵡螺類。牠們的化石主要產於歐洲等地，和同時期常見的新生角石相比之下較為罕見。[1]
擬阿加尼德角石屬 化石时期：侏羅紀
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科学分类 
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| 界： | 动物界 Animalia |
| 门： | 軟體動物門 Mollusca |
| 纲： | 頭足綱 Cephalopoda |
| 目： | 鸚鵡螺目 Nautilida |
| 科： | †擬鸚鵡螺科 Pseudonautilidae |
| 属： | †擬阿加尼德角石屬 Pseudaganides Spath, 1927 |
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特徵
擬阿加尼德角石和新生角石的外型十分相像，都擁有內旋的殼與平坦的腹側，體管較偏向腹面。兩者最顯著的差別為縫合線的差異，新生角石的縫合線側面為單純的弧線狀；而擬阿加尼德角石的縫合線側面則是呈現S型，氣室隔壁也更加扭曲。[1]
物種[2]
- Pseudaganides aganiticus
- Pseudaganides ammoni
- Pseudaganides argoviensis
- Pseudaganides bodeni
- Pseudaganides brunhuberi
- Pseudaganides crassisinuatus
- Pseudaganides drepanensis
- Pseudaganides duilii
- Pseudaganides franconicus
- Pseudaganides frickensis
- Pseudaganides girardoti
- Pseudaganides gravesianus
- Pseudaganides helveticus
- Pseudaganides klebelsbergi
- Pseudaganides kochi
- Pseudaganides krenkeli
- Pseudaganides ledonicus
- Pseudaganides oppeli
- Pseudaganides portlandicus
- Pseudaganides pulchellus
- Pseudaganides roemeri
- Pseudaganides rogeri
- Pseudaganides royeri
- Pseudaganides schlosseri
- Pseudaganides schlotheimi
- Pseudaganides schneidi
- Pseudaganides schwertschlageri
- Pseudaganides strambergensis
- Pseudaganides stromeri
- Pseudaganides tubingensis
- Pseudaganides tukeryi
參考文獻
- ^ 1.0 1.1 Pseudaganides 擬阿加尼德角石 (法國) @ 菊海神遊 Swimming with Ammonites :: 痞客邦 ::. [2018-05-16] （中文（繁體））.
- ^ Fossilworks: Pseudaganides. [2018-05-16] （英语）.[失效連結]