三九養(yǎng)生堂記者 鄧肯·蓋伊 報道
精彩| 徐??(xu)光??(guang)輝?(hui)指??(zhi)出??(chu)??，這??(zhe)表??(biao)明??(ming)圓??(yuan)尾??(wei)滇??(dian)東??(dong)魚??(yu)比??(bi)此??(ci)前??(qian)發(fā)??(fa)現(xiàn)??(xian)的??(de)拱??(gong)魚??(yu)目??(mu)及??(ji)歐??(ou)美??(mei)所??(suo)有??(you)鉸??(jiao)齒??(chi)魚??(yu)類??(lei)都??(dou)要??(yao)原??(yuan)始??(shi)??，代??(dai)表?(biao)了??(le)現(xiàn)??(xian)生?(sheng)雀??(que)鱔??(shan)魚??(yu)類?(lei)這??(zhe)一??(yi)演??(yan)化??(hua)支??(zhi)系??(xi)最??(zui)原??(yuan)始??(shi)的??(de)祖??(zu)先??(xian)類??(lei)型??(xing)??。??“通??(tong)俗??(su)地??(di)說??(shuo)??，中??(zhong)國??(guo)科??(ke)學??(xue)院??(yuan)古??(gu)脊??(ji)椎??(zhui)所?(suo)逮??(dai)到??(dao)天??(tian)下??(xia)第??(di)一??(yi)條??(tiao)雀??(que)鱔?(shan)魚??(yu)類??(lei)”??。 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??(xue)研??(yan)究??(jiu)基??(ji)礎??(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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