Cephalon (arthropod head)

Left: Peronopsis interstrictus, an Agnostida from Cambrian age strata of Utah.Center:Praecambridium sigillumRight:The enigmatic creature, Ainiktozoon loganese, a Thylacocephala, which was once thought to be an ancestral chordate, but is now thought to be a peculiar-looking crustacean. The trilobite in the same picture is Calymene blumenbachi. Both lived in Silurian Great Britain.

The cephalon is the head section of an arthropod. It is a tagma, i.e., a specialized grouping of arthropod segments. The word cephalon derives from the Greek κεφαλή (cephale), meaning "head".

单词	librigena
释义	librigena 英汉-汉英词典活动颊词组 \| 习惯用语您要查找的是不是： librarian n. 图书馆馆长; 图书馆管理员 lubricant n. 润滑剂 Liberian adj. 利比里亚人的 n. 利比里亚人 brigandage n. 抢劫，土匪行为英语百科 Cephalon (arthropod head) The cephalon is the head section of an arthropod. It is a tagma, i.e., a specialized grouping of arthropod segments. The word cephalon derives from the Greek κεφαλή (cephale), meaning "head".
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Cephalon (arthropod head)