Early Cambrian phosphatized blastula- and gastrula-stage animal fossils from southern Shaanxi
Early Cambrian phosphatized blastula- and gastrula-stage animal fossils from southern Shaanxi
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DOI：
10.1007/bf02900970
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发表时间：
2004-03-01
影响因子：
--
通讯作者：
Zhang, LY
中科院分区：
文献类型：
--
作者：
Hua, H;Chen, Z;Zhang, LY
Marine invertebrate animal embryos and their early developmental products are of great significance to the study of taxonomy and phylogeny of early animals. A great number of phosphatized globular fossils were collected from the early Cambrian Kuanchuanpu Member (upper Dengying Formation), southern Shaanxi, and a nearly complete developmental sequence-from a fertilized egg, via blastodisc formation, blastula development, blastodisc enlargement toward gastrulae, to tissue differenliation-can be discerned in this collection. This discovery provides unmatchable material for studies on the origin, taxonomy, radiation, and ontogeny of early metazoans.
