Talk:Craniate

"all craniates have skulls"

Surely this isn't true? -see hagfish Fayefox 20:37, 27 February 2007 (UTC)

someone shouold add the link to http://zh.wikipedia.org/wiki/%E5%85%A8%E5%A4%B4%E7%B1%BB

Hagfish spp. actually do have skulls, which are made of cartilage. They do not, however, have vertebrae, which is why they are considered craniates but not vertebrates. I added references attesting to the hagfish skull and generally including hagfish among the craniates. As for the recommendation to add a link to the Chinese language article, this appears to pertain only to Holocephali, a subclass of Chondrichthyes. Holocephali, and all chondrichthyans, are craniates, but these two articles are not equivalent because the Chinese article deals exclusively with one subclass. Myceteae (talk) 11:37, 13 December 2007 (UTC)

"Craniata includes all animals with a head"

In common parlance, "head" designates the business end of various non-craniate animals, such as the cephalic tagma of insects. For clarity, perhaps change either to "all chordates with a head" or "all animals with a cranium"? —Preceding unsigned comment added by 85.8.12.78 (talk) 11:29, 22 December 2007 (UTC)

Hagfish

"the hagfish is not a true vertebrate and thus cannot be considered a true fish."-Evolutions,Diversity and Ecology,(Vol.3) Author-Brooker. —Preceding unsigned comment added by 129.171.233.78 (talk) 00:38, 27 October 2009 (UTC)

Cephalochordata

Craniates sure don't belong to the cephalochordates, but I don't manage to figure out how to change it. Can someone do this please?

Best wishes,

Rikske V. (talk) 19:10, 3 February 2014 (UTC)

Hagfish

Are you sure hagfish (myxini) aren't vertebrates? My book says: "Hagfish have at times been excluded from the vertebrates because they have only vestiges of a vertebral column. However, recent molecular studies confirm that they are related to the other jawless fish, the lampreys. Reptiles, birds, and mammals (as well as amphibians, of which there are no marine species) are informally grouped together as tetrapods (tetrapoda) within the larger [informal] group of jawed vertebrates (Gnathostomata), which also include fish." (An ocean book I have, emphasis added.) Charizardmewtwo (talk) 14:57, 23 July 2016 (UTC)

Obsolete?

@Al-Andalus: with the following edit [1], describing Craniata as obsolete rather than proposed. Have you got a reliable source to back this up? I see the following problems with this edit:

1. It seems for living animals that Craniata has become a synonym for Vertebrata. But does this make the clade obsolete? It is still a valid clade, but one with a synonym. Using this reasoning you could equally argue that Vertebrata was obsolete because of the presence of Craniata.
2. Things become murkier when you consider extinct animals, as groups like the Cephalaspidomorphi are generally agreed to be craniates; but evidence of also being vertebrates is inconclusive. This would suggest the Craniata are not obolete after all.
3. Scientific papers still regularly use the term craniata: on Google Scholar, in 2017, 83 papers use the term Craniata, and 47 use the term craniate. So it is in current scientific use.

Any comments on this? --Jules (Mrjulesd) 20:01, 18 July 2017 (UTC)

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