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寒武纪的“蚯蚓”——鳃曳动物
  • ISSN号：0253-9608
  • 期刊名称：自然杂志
  • 时间：0
  • 页码：3985-3988
  • 语言：中文
  • 分类：Q958.12[生物学—动物学] P534.41[天文地球—古生物学与地层学;天文地球—地质学]
  • 作者机构：[1]西北大学地质系及教育部大陆动力学实验室,西安710069
  • 相关基金：国家自然科学基金资助（40602003,50702005,40830208）
  • 相关项目：早寒武世澄江生物群和湖北峡东岩家河组蠕形动物研究
作者： 韩健|姚肖永|焦国祥|
关键词： 早寒武世, 澄江化石库, 鳃曳动物, 活化石, Early Cambrian, Chengjiang Lgerstatte, priapulans, living fossils
中文摘要：

鳃曳动物在寒武纪曾经辉煌一时,但因躯体构型以及生活方式等诸多因素限制,其各大支系随后相继绝灭,唯有鳃曳形目一息尚存至今。研究表明鳃曳形目自寒武纪以来形态未发生较大变化,无论在宏观还是分子水平都属于活化石,这种进化保守性以及新近发现的寒武纪胚胎化石对于了解动物的变态发育起源至关重要。

英文摘要：

Most of their clades of the Priapulan terminated their evolutionary history immediately after their rapid diversification in the Early Cambrian,probably due to the constriction of many factors such as body plan,life style etc.However,Cambrian priapuomorphs convincingly resemble their recent descendents,supporting that this clade remain stagnant in morphology,and really being a kind of living fossils either in anatomical or molecular level.This evolutionary feature,together with recent findings of priapulans-like fossil embryos,is rather critical to investigate into the origin of the metamorphosis of metazoans.

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期刊信息
  • 《自然杂志》
  • 北大核心期刊（2011版）
  • 主管单位:上海市教育委员会
  • 主办单位:上海大学
  • 主编：吴明红
  • 地址：上海市上大路99号上海大学121信箱
  • 邮编：200444
  • 邮箱：ziranzazhi@163.com
  • 电话：021-66135618
  • 国际标准刊号：ISSN：0253-9608
  • 国内统一刊号：ISSN：31-1418/N
  • 邮发代号:4-226
  • 获奖情况:
  • 2010年获教育部科学技术司第三届中国高校优秀科技...,2009年获全国高校科技期刊优秀编辑质量奖
  • 国内外数据库收录:
  • 中国中国科技核心期刊,中国北大核心期刊（2004版）,中国北大核心期刊（2008版）,中国北大核心期刊（2011版）,中国北大核心期刊（2000版）
  • 被引量:9231