閉箭石
闭箭石属 化石时期：
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| Phragmoteuthis conocauda的化石 | |
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： | †闭箭石目 Phragmoteuthida |
| 科： | †闭箭石科 Phragmoteuthidae |
| 属： | †闭箭石属 Phragmoteuthis Mojsisovics, 1882[1] |
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閉箭石（學名：Phragmoteuthis）是生存在晚三疊紀[2]至早侏羅紀[3]海洋中的一屬箭石。其軟組織在一些標本中有保存下來，包括墨囊[2]、鰓等構造。[4]牠們擁有一個位於體內的閉錐[2]和十條觸腕。[5]其化石分布於澳大利亞和瑞士等地。[1]
物種
[编辑]- Phragmoteuthis bisinuata (Bronn, 1859)
- Phragmoteuthis conocauda (Quenstedt, 1849)
- Phragmoteuthis huxleyi Donovan, 2006
- Phragmoteuthis montefiorei (Buckman, 1880)
- ?Phragmoteuthis ticinensis Rieber, 1970
參考文獻
[编辑]- ^ 1.0 1.1 1.2 Fossilworks: Phragmoteuthis. [2018-08-15]. （原始内容存档于2019-07-12） （英语）.
- ^ 2.0 2.1 2.2 Doguzhaeva, L.; Summesberger, H.; Mutvei, H.; Brandstaetter, F. The mantle, ink sac, ink, arm hooks and soft body debris associated with the shells in Late Triassic coleoid cephalopod Phragmoteuthis from the Austrian Alps. Palaeoworld. 2007, 16 (4): 272–284. doi:10.1016/j.palwor.2007.08.002.
- ^ Mutvei, H.; Donovan, D. T., Siphuncular structure in some fossil coleoids and Recent Spirula, Palaeontology, 2006, 49 (3): 685–691, doi:10.1111/j.1475-4983.2006.00533.x
- ^ Joachim Reitner. Preserved gill remains in Phragmoteuthis conocauda (Quenstedt, 1846-49) (Toarcian, Southern Western Germany) (PDF). Berliner paläobiologische Abhandlungen. 2009-11-11, 10: 289–295 [2018-08-15]. （原始内容 (PDF)存档于2012-03-20）.
- ^ Donovan, D. T. Phragmoteuthida (Cephalopoda: Coleoidea) from the Lower Jurassic of Dorset, England. Palaeontology. 2006, 49 (3): 673–684. doi:10.1111/j.1475-4983.2006.00552.x.
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