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	cranidium
释义	cranidium 英汉-汉英词典头盖词组 \| 习惯用语您要查找的是不是： uranium n. [化]铀 cranium n. 头盖骨；颅骨；脑壳 scandium n. 钪 geranium n. [植]天竺葵 corundum n. 金刚砂，刚玉 cranidium [古生] 头盖网络短语: cranidium m 头盖英语百科 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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cranidium

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网络短语:

Cephalon (arthropod head)