三叶虫 (trilobites)在地球的海底里繁衍了几百万年，从化石的研究记录里显示，它们大约生活在5亿4000万年前的寒武纪初期。在当时的寒武纪生物爆发 (Cambrian explosion) 后，不同的生命开始繁衍。三叶虫逐渐灭亡的时间是介在3亿-2亿4000万年前，尤其在二叠纪和三叠纪交界时期 (Permian-Triassic boundary)(2亿4500-2亿5100 万年前)的灭绝事件后，三叶虫即消失在化石纪录里。它们类属于节肢动物 (arthopods), 但它们的物种是否更接近甲壳类 （crustations）、蟹类 (cheliceramorpha)(马蹄蟹、海蝎子和蜘蛛纲的动物)或海蜘蛛纲 (pycnogonida)(海蜘蛛) ，目前我们尚未有全面的了解。
友谊网页连结
- The Trilobites website has great pages about trilobite life (Sam M. Gon III).
- An Australian Museum Online site about the trilobites.
- The Fossil Museum has interesting pages about trilobites.
- The Peronopsis interstricta (or some other Agnostida?) trilobite fossils shown on this page were found near Delta, Utah close to the private U-Dig fossil quarry, a commercial outfit that gives people a chance to find trilobite fossils.
- Many trilobite fans have created websites full of photographs of trilobite fossils. This is one of the better ones, by Mark Bourrie.
- 中国科学院计算机网路资讯中心的三叶虫世界
- 石尚矿物化石博物馆三叶虫
三叶虫 (trilobites)在地球的海底里繁衍了几百万年，从化石的研究记录里显示，它们大约生活在5亿4000万年前的寒武纪初期。在当时的寒武纪生物爆发 (Cambrian explosion) 后，不同的生命开始繁衍。三叶虫逐渐灭亡的时间是介在3亿-2亿4000万年前，尤其在二叠纪和三叠纪交界时期 (Permian-Triassic boundary)(2亿4500-2亿5100 万年前)的灭绝事件后，三叶虫即消失在化石纪录里。它们类属于节肢动物 (arthopods), 但它们的物种是否更接近甲壳类 （crustations）、蟹类 (cheliceramorpha)(马蹄蟹、海蝎子和蜘蛛纲的动物)或海蜘蛛纲 (pycnogonida)(海蜘蛛) ，目前我们尚未有全面的了解。
友谊网页连结
- The Trilobites website has great pages about trilobite life (Sam M. Gon III).
- An Australian Museum Online site about the trilobites.
- The Fossil Museum has interesting pages about trilobites.
- The Peronopsis interstricta (or some other Agnostida?) trilobite fossils shown on this page were found near Delta, Utah close to the private U-Dig fossil quarry, a commercial outfit that gives people a chance to find trilobite fossils.
- Many trilobite fans have created websites full of photographs of trilobite fossils. This is one of the better ones, by Mark Bourrie.
- 中国科学院计算机网路资讯中心的三叶虫世界
- 石尚矿物化石博物馆三叶虫