Spriggina

Fossils of Spriggina are known from the Ediacaran period, around 550 million years ago. The segmented organism reached about 3–5 cm in length and may have been predatory. Its bottom is covered with two rows of tough interlocking plates, while one row covered its top; its front few segments fused to form a "head", which may have borne eyes and antennae.

单词	Spriggina
释义	Spriggina 原声例句 PBS地球-动物趣闻 They may have evolved from small thick-skinned segmented worms like spriggina, which I gotta say do seem to share a family resemblance. 它们可能是从像 spriggina 这样的小而厚皮的分段蠕虫进化而来的，我得说这似乎确实具有家族相似性。英语百科 Spriggina Fossils of Spriggina are known from the Ediacaran period, around 550 million years ago. The segmented organism reached about 3–5 cm in length and may have been predatory. Its bottom is covered with two rows of tough interlocking plates, while one row covered its top; its front few segments fused to form a "head", which may have borne eyes and antennae.
随便看	Gattendorf gatten tree Gatteo a Mare gattered Gatterman Koch synthesis Gattermann aldehyde synthesis Gattermann Koch reaction gattermann koch synthesis Gattermann reaction Gatterman reaction Gatteville GATT,Gatt Gatti Gattii Gatti Lux syndrome Gattinara gattine gattino Gattis gattison Gattières gattnar gattnars Gatto Gatton