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- B55860f3530d79509a63f12d15bad0158 date_retrieved "2012-09-17" @default.
- B55860f3530d79509a63f12d15bad0158 external_class "VHOG:0000545" @default.
- B55860f3530d79509a63f12d15bad0158 ontology "VHOG" @default.
- B55860f3530d79509a63f12d15bad0158 source "DOI:10.1038/nature02843 Zhu M, Ahlberg PE, The origin of the internal nostril in tetrapodes. Nature (2004)" @default.
- B55860f3530d79509a63f12d15bad0158 source "http://bgee.unil.ch/" @default.
- B55860f3530d79509a63f12d15bad0158 type Axiom @default.
- B55860f3530d79509a63f12d15bad0158 annotatedProperty UBPROP_0000003 @default.
- B55860f3530d79509a63f12d15bad0158 annotatedSource UBERON_0004771 @default.
- B55860f3530d79509a63f12d15bad0158 annotatedTarget "The choana, a unique 'internal nostril' opening from the nasal sac into the roof of the mouth, is a key part of the tetrapod (land vertebrate) respiratory system. It was the first component of the tetrapod body plan to evolve, well before the origin of limbs, and is therefore crucial to our understanding of the beginning of the fish-tetrapod transition. (...) Here we present new material of Kenichthys, a 395-million-year-old fossil fish from China, that provides direct evidence for the origin of the choana and establishes its homology: it is indeed a displaced posterior external nostril that, during a brief transitional stage illustrated by Kenichthys, separated the maxilla from the premaxilla.[well established][VHOG]" @default.