青年中文gnathostome的意思
gnathostome中文翻譯：
有頜類
chaetognatha wikipedia───毛顎動物維基百科
endognath───內顎
chaetognath───adj.毛顎類動物的（等于chaetognathan）；n.[無脊椎]毛顎類動物
mesognathous───adj.中型顎的
chaetognatha definition───毛顎動物定義
chaetognatha habitat───毛顎動物棲息地
chaetognatha video───毛顎動物視頻
entognathous hexapods───內顎六足
prognathous───adj.下巴突出的
macrognathic───巨頜的
Chondrichthyes (sharks, rays and chimaeras) account for only 2% of gnathostome species, the Osteichthyes accounting for the other 98%.───軟骨魚類(鯊魚、鰩、銀鮫)僅占有頜類物種數的2%，其余98%的有頜類都屬于硬骨魚類。
The gnathostome condition, with paired nasal sacs not associated with a through duct, would therefore be a derived condition.
Chondrichthyes (sharks, rays and chimaeras) account for only 2% of gnathostome species, the Osteichthyes accounting for the other 98%.
The acquisition of many gnathostome characters occurred through several transformation series which can be traced across the phylogeny of agnathans.