Metameric features in the Vendian metazoans
作者:
MikhailA. Fedonkin,
期刊:
Italian Journal of Zoology
(Taylor Available online 1998)
卷期:
Volume 65,
issue 1
页码: 11-17
ISSN:1125-0003
年代: 1998
DOI:10.1080/11250009809386723
出版商: Taylor & Francis Group
关键词: Precambrian;Metazoa;Ediacara‐type fauna;Metamerism
数据来源: Taylor
摘要:
Metamerism as the serial homology is widespread among the Vendian (Late Precambrian) metazoans. Prevalence of segmented forms among the Vendian Bilateria suggests that in many phylogenetic lineages of Metazoa the evolutionary development of the bilateral symmetry and metamerism were related processes. Large number of coelenterate‐grade forms with serially homologous parts may indicate that at the earlier, pre‐Vendian stages of the metazoan history metamerism could be at great extent realised at the diploblastic level.
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