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Vetulicola cuneata : ウィキペディア英語版 | Vetulicola cuneata
''Vetulicola cuneata'' ("Wedged-shaped ancient dweller") is the type species of a genus of small, Early Cambrian deuterostome animals from the Chengjiang biota of China. ==Description== ''V. cuneata'' has a body composed of two distinct parts of approximately equal length. The anterior part is rectangular in shape, and enclosed by a carapace-like structure of four rigid cuticular plates fused together, with a large, V-shaped mouth at the front end: there is a keel-like extension of the body wall on the top and belly. The tail-like posterior section is slender, strongly cuticularised and placed dorsally. Paired openings connecting the pharynx to the outside run down the sides. These features are interpreted as possible primitive gill slits. ''Vetulicola cuneata'' could be up to 7 cm long.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Vetulicola cuneata」の詳細全文を読む
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