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　　三九養(yǎng)生堂記者 鄧肯·蓋伊 報道

精彩|　　徐??(xu)光?(guang)輝??(hui)研??(yan)究??(jiu)員??(yuan)表??(biao)示?(shi)??，在??(zai)分??(fen)類??(lei)學(xué)??(xue)上??(shang)??，雀??(que)鱔??(shan)及??(ji)其??(qi)祖??(zu)先??(xian)類?(lei)型??(xing)(如??(ru)半??(ban)椎??(zhui)魚??(yu)目??(mu)和??(he)拱??(gong)魚??(yu)目??(mu))統(tǒng)??(tong)稱??(cheng)為??(wei)鉸??(jiao)齒??(chi)魚??(yu)類??(lei)??，構(gòu)??(gou)成??(cheng)輻??(fu)鰭??(qi)魚??(yu)亞??(ya)綱??(gang)中??(zhong)新??(xin)鰭??(qi)魚??(yu)類??(lei)的??(de)三?(san)大??(da)主??(zhu)要??(yao)類??(lei)群??(qun)之??(zhi)一?(yi)??。?　　之??(zhi)前??(qian)??，在??(zai)羅?(luo)平??(ping)生??(sheng)物??(wu)群??(qun)發(fā)??(fa)現(xiàn)??(xian)的??(de)鉸??(jiao)齒??(chi)魚??(yu)類??(lei)都??(dou)可??(ke)以??(yi)歸??(gui)入??(ru)拱??(gong)魚??(yu)目??(mu)??，但??(dan)圓??(yuan)尾??(wei)滇??(dian)東??(dong)魚??(yu)的??(de)獨??(du)特??(te)骨??(gu)骼??(ge)形??(xing)態(tài)??(tai)特??(te)征??(zheng)顯??(xian)然??(ran)區(qū)??(qu)別??(bie)于??(yu)拱??(gong)魚?(yu)目??(mu)魚??(yu)類??(lei)??。??此??(ci)次??(ci)研??(yan)究??(jiu)在??(zai)詳??(xiang)細??(xi)的??(de)骨??(gu)骼??(ge)形??(xing)態(tài)??(tai)學(xué)??(xue)研??(yan)究??(jiu)基??(ji)礎(chǔ)??(chu)上??(shang)??，將??(jiang)圓?(yuan)尾??(wei)滇??(dian)東??(dong)魚??(yu)納?(na)入?(ru)大??(da)尺??(chi)度??(du)的??(de)分??(fen)支??(zhi)分??(fen)析??(xi)中??(zhong)??，研?(yan)究??(jiu)結(jié)??(jie)果??(guo)顯??(xian)示??(shi)??，圓??(yuan)尾?(wei)滇??(dian)東??(dong)魚??(yu)位??(wei)于??(yu)鉸??(jiao)齒??(chi)魚??(yu)類??(lei)的??(de)最??(zui)底??(di)部??(bu)??。

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