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Lejopyge laevigata : ウィキペディア英語版 | Lejopyge laevigata
''Lejopyge laevigata'' is a species of agnostid trilobite belonging to the genus ''Lejopyge''. It existed during the Guzhangian to the Paibian Age (around to million years ago) of the Cambrian. It has a cosmopolitan distribution and is an important index fossil in biostratigraphy. ==Description== ''Lejopyge laevigata'' exhibits a cephalon and pygidium that are smooth and almost featureless (effaced). Both possess axial furrows that gradually become shallower until they disappear distally. They surround the rear edges of the glabella (reaching about as far or a little past the basal glabellar lobes) and the anterior end of the central lobe of the pygidium. Basal furrows are also present. The genae ("cheeks") are usually smooth, but in extremely rare cases they may possess small pits (scrobicules) of moderate depth. The border around the pygidium is uniform in width at the back and narrows towards the front. Like all members of the suborder Agnostina, ''Lejopyge laevigata'' is completely blind.
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「Lejopyge laevigata」の詳細全文を読む
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