Talk:Choana

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This article is far too cursory. The choana is an important organ in the evolution of vertebrate structure and it needs to be considered from the perspective of a paleoichthyologist, of which there aren't many who have time to post on here probably. An expert on crossopterygian fishes would be a good person to write an entry.

Study the literature on crossopts and you will have a good introduction to the choana.
Crossopts are "lobe-finned" fishes that were abundant in the Devonian. Lobe-finned fishes
are also classified as Sarcopterygii. Another lobe-finned fish that is well-known is the
"living fossil" Coelacanth, Latimeria sp. Coelacanths do not have choanae, but
crossopterygians and dipnoans do, although they have a different embryologic pattern
so it's not clear how the choana is related in all the groups.
One thing seems to be fairly consistent in the literature: the tetrapod choana has
its origin in the Sarcopterygii.
Other anatomical characteristics link tetrapods within the more restrictive category Crossopterygii.
—Preceding unsigned comment added by 128.97.31.115 (talk) 03:11, 14 February 2009 (UTC)[reply]

Is this supposed to be just about the human anatomy? I'm not good with formatting, but if someone separated this into articles I could help more.Drchazz (talk) 00:55, 29 January 2009 (UTC)[reply]

The assertion "They [...] allowed the passage from water to land" deserves more elaboration. I spent time reading and searching the reference given for this claim, and did not see the justification for the claim. Bostonquad (talk) 16:35, 13 August 2024 (UTC)[reply]

image

Is it possible to highlight on the main image which space this article refers to? The labels don't seem very useful. Also, an image or diagram (in the relevant subsection) of the counterparts in fish would be helpful too. Cesiumfrog (talk) 00:31, 31 October 2011 (UTC)[reply]

Page name

Should page be changed to Choanae or Choana - it's the TA preferred term and more used in searches. --Iztwoz (talk) 17:43, 25 June 2016 (UTC)[reply]

Birds

Choanal papillae and choanal slit should redirect here and even though we don't really know what they're for, there should be at least some mention of choanal papillae since they're a good indicator of a bird's nutritional health.