文档介绍：寒武纪海洋霸主--奇虾
纲 Class Dinocarida Collins, 1996
目 Order Radiodonta Collins, 1996
奇虾科 Family Anomalocaridae Raymond, 1935
奇虾属 Genus Anomalocaris Whiteaves, 1892
在摩洛哥早奥陶世 Fezouata 生物群也发现了巨型奇虾化石, 成为奇虾类的最晚化石记录(Van Roy P, Briggs D E G,2011)。
广泛分布于寒武纪地层中,在中国澄江动物群,加拿大,美国,澳大利亚均有发现。
(Є1~O1)
This photo of the head of Anomalocaris saron, from the Chengjiang lagerstatten in China, shows the armed anterior appendages and prominent eyes. The central gut and dark paired structures to either side are also apparent.
reconstruction of Anomalocaris nathorsti
Whittington & Briggs (1985)
辐射对称的口部
长满刺的前附肢
Paranomalocaris multisegmentalis
Wang,Huang&Hu,2013
Anomalocaris kunmingensis
Wang,Huang&Hu,2013
奇虾的复眼
John R. Paterson et al. 2011
Anomalocaridids are broadly acknowledged to be the top predators in Cambrian and Ordovician ecosystems. Predatory habits are inferred on the basis of their large size (body length more than cm), robust spinose frontal appendages, mouth with a dentate inner margin, size and form of the midgut glands, predation damage to associated biota and interpretation of coprolites as having an anomalocaridid origin. The streamlined profile of the body, inferred function of the lateral body flaps (‘swim flaps’) in otion, and the large tripartite tail fan preserved in a few taxa indicate strong swimming capabilities. The large, stalked eyes of anomalocaridids, emerging from the dorsolateral side of the head, provide additional evidence for prey detection and tracking consistent with predatory habits.
(John R. Paterson et al. 2011)