Advances, diversions, possible relapses and additional problems in understanding the early evolution of the Articulata
作者:
LauraDelle Cave,
Emilio Insom,
AlbertoMario Simonetta,
期刊:
Italian Journal of Zoology
(Taylor Available online 1998)
卷期:
Volume 65,
issue 1
页码: 19-38
ISSN:1125-0003
年代: 1998
DOI:10.1080/11250009809386724
出版商: Taylor & Francis Group
关键词: Articulata;Evolution;Morphology
数据来源: Taylor
摘要:
The authors review the available evidence concerning the early stages of radiation of the Articulata and support the hypothesis that there was probably a range of, perhaps incompletely, metameric organisms spanning, without definite borderlines, the early ancestors of arthropods, lobopods and annelids. By the early Cambrian, the stem lineages of the living articulate phyla were well‐identified, but there still survived a number of animals whose morphology spanned, to some extent, the gaps between the living taxa. The affinities between Annelida (sensu lato) and Mollusca are briefly discussed.
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