擬錐石屬
外觀
擬錐石屬 | |
---|---|
科學分類 | |
界: | 動物界 Animalia |
門: | 刺胞動物門 Cnidaria |
綱: | 缽水母綱 Scyphozoa |
目: | †錐石目 Conulariida |
科: | †錐石科 Conulariidae |
屬: | †擬錐石屬 Paraconularia |
種 | |
見內文 |
擬錐石屬(學名:Paraconularia)是缽水母綱錐石目下已滅絕的一屬,生存於志留紀至三疊紀。[1]本屬的物種生活在海洋中,利用其小底盤附著在海床上。[2]
特徵
[編輯]殼有四個面,呈圓錐狀,其切面為菱形。四個面都朝上拱起,有間距很密的線,四面相交的四個角是窄小的V形裂片。殼很薄,由磷酸鹽和蛋白質等構成。[2]
- Paraconularia acuminata
- Paraconularia arctica
- Paraconularia caledonica
- Paraconularia derwentensis
- Paraconularia kazanensis
- Paraconularia laskeri
- Paraconularia leonardensis
- Paraconularia margaritae
- Paraconularia matauraensis
- Paraconularia nefarius
- Paraconularia ornata
- Paraconularia pulcheria
- Paraconularia punjabica
- Paraconularia qinglongensis
- Paraconularia salaria
- Paraconularia spatia
- Paraconularia sueroi
- Paraconularia tepuelensis
- Paraconularia warthi
- Paraconularia yichunensis
- Paraconularia zhongyingensis
參考文獻
[編輯]- ^ 1.0 1.1 Fossilworks: Paraconularia. [2017-11-10] (英語).[失效連結]
- ^ 2.0 2.1 Walker, Cyril; Ward, David. Fossils. Smithsonian Handbooks revised, illustrated. Dorling Kindersley. 2002: 44. ISBN 0789489848.