弛菊石
弛菊石属 | |
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| Lytoceras fimbriatum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： | †菊石目 Ammonitida |
| 科： | †弛菊石科 Lytoceratidae |
| 亚科： | †弛菊石亚科 Lytoceratinae |
| 属： | †弛菊石属 Lytoceras Suess, 1865[1] |
| 種 | |
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見內文 | |
弛菊石（學名：Lytoceras），又名馳菊石，是生存在早侏羅世至晚白堊世海洋中的一屬菊石。牠們的化石遍布世界各地，特別是在西歐、馬達加斯加、南非和美國。[1]
特徵
[编辑]弛菊石的殼為反旋結構，並有寬闊的核心。旋環圓而均勻。殼表有纖細而緊密的肋條和少見的凸緣，這些飾紋連貫地延伸到殼腹。縫合線是複合的。弛菊石的殼形不適於快速游水，故它們可能生活在海底附近。[2]
- Lytoceras aulaeum Anderson, 1938
- Lytoceras baconicum Vadasz, 1910
- Lytoceras batesi Whiteaves, 1884
- Lytoceras belliseptatiforme Collignon, 1962
- Lytoceras cornucopia Young and Bird, 1822
- Lytoceras crenatum Buckman, 1926
- Lytoceras eudesianum (Orbigny, 1845)
- Lytoceras fimbriatoides Gemmellaro, 1884
- Lytoceras fimbriatum Sowerby, 1817
- Lytoceras fraasi Dacqué, 1910
- Lytoceras francisci Oppel, 1865
- Lytoceras fuggeri Geyer, 1893
- Lytoceras furcicrenatum Buckman, 1928
- Lytoceras juillieti (Orbigny, 1841)
- Lytoceras ovimontanum Geyer, 1893
- Lytoceras polycyclum Neumayr, 1873
- Lytoceras polyanchomenum (Gemellaro, 1872)
- Lytoceras praesublineatum Fucini, 1899
- Lytoceras richei Sayn, 1901
- Lytoceras saturnale Anderson, 1938
- Lytoceras sepositum Meneghini, 1875
- Lytoceras subfimbriatoides Hoedemaeker in Hoedemaeker et al., 2016
- Lytoceras subfimbriatum (Orbigny, 1841)
- Lytoceras sutile Oppel, 1868
- Lytoceras trompianum Hauer, 1861
- Lytoceras villae Meneghini, 1874
參考文獻
[编辑]- ^ 1.0 1.1 1.2 Fossilworks: Lytoceras. [2018-05-23]. （原始内容存档于2014-10-07） （英语）.
- ^ Walker, Cyril; Ward, David. Fossils. Smithsonian Handbooks revised, illustrated. Dorling Kindersley. 2002: 145. ISBN 0789489848.
外部連結
[编辑]- Lytoceras in the Paleobiology Database
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