拟阿加尼德角石

拟阿加尼德角石学名Pseudaganides)是一灭绝鹦鹉螺类。它们的化石主要产于欧洲等地,和同时期常见的新生角石相比之下较为罕见。[1]

拟阿加尼德角石属
化石时期:196.5–145.5 Ma
侏罗纪
科学分类 编辑
界: 动物界 Animalia
门: 软体动物门 Mollusca
纲: 头足纲 Cephalopoda
目: 鹦鹉螺目 Nautilida
科: 拟鹦鹉螺科 Pseudonautilidae
属: 拟阿加尼德角石属 Pseudaganides
Spath, 1927

见内文

特征

拟阿加尼德角石和新生角石的外型十分相像,都拥有内旋的壳与平坦的侧,体管较偏向腹面。两者最显著的差别为缝合线的差异,新生角石的缝合线侧面为单纯的弧线状;而拟阿加尼德角石的缝合线侧面则是呈现S型,气室隔壁也更加扭曲。[1]

物种[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

参考文献