Are the new Ediacaran Doushantuo Megasphaera-like acritarchs early metazoans?

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• 作者：Bor Luen Tang ; ^{bchtbl@nus.edu.sg" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Ediacaran ; Matryoshkas ; Metazoan
• 刊名：Palaeoworld
• 出版年：2016
• 出版时间：January 2016
• 年：2016
• 卷：25
• 期：1
• 页码：128-131
• 全文大小：617 K

文摘

A recent report by Chen et al. (2014) describes the new Ediacaran Doushantuo acritarchs with fascinating features. Nested within Megaclonophycus-like fossils that exhibit palintomic cell division are multicellular spheroid structures termed matryoshkas, which are interpreted to be germ cells. Such distinctive features of cellular differentiation and germ-soma separation suggest affinities of these with early stem group metazoans. In this commentary, I suggest some alternative interpretations to those elaborated by Chen et al. (2014).