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Craniata - Wikipedia, the free encyclopedia
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Hutchinson encyclopedia article about craniate. craniate. Information about craniate in the Hutchinson encyclopedia. ... (redirected from craniate)
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Some craniates, the tetrapods or four-legged vertebrates, became terrestrial and arose about 370 millions years ago from fish ancestors. Now, the majority of the craniate species are represented by one group of fish, the actinopterygians, and the tetrapods.
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Craniates are animals with well-developed heads and a skull of sorts. A very early craniate, Myllokunmingia from the Cambrian of China, is badly illustrated in the figure at right.
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To read this article in full you may need to log in, make a payment or gain access through a site license (see right). ... Open Innovation Challenges ... Optimizing Sub-cellular Localization Tags...
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Here we describe a recently discovered craniate-like chordate, Haikouella lanceolata, from 305 fossil specimens in Haikou near Kunming. This 530 million-year-old (Myr) fish-like animal resembles the contemporaneous Yunnanozoon from the Chengjiang fauna (about 35 km southeast of Haikou) in several anatomic features.
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Detailed Classification of Craniata ... (Craniate Taxa for ZO 150 - only bolded names are required. ... (taxa below this level are Vertebrata)
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Such a multiplicity of Distal-less functions probably represents an ancestral chordate condition and, during craniate evolution, when this gene diversified into a family of six or so members, the original functions evidently tended to be parcelled out among the descendant genes.
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From the comparison of the four maps with already published ones for other species, we propose that the main features of the craniate mtDNA between the ND1 and COI genes were established in the common ancestor to cephalochordates and vertebrates more than 400 MYA.
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Chinese fossil discoveries of the earliest known craniates (from the early Cambrian period) have led scientists to question whether the evolution of human-level cognition is a rare occurrence in the universe. The earliest chordate is now best represented by a well ... Possessing a relatively large brain, ... Post a Comment...
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