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　　三九養(yǎng)生堂記者 鄧肯·蓋伊 報(bào)道

精彩|　　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(dú)??(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(xì)??(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)???！　∷??(ta)介??(jie)紹??(shao)說??(shuo)?，現(xiàn)??(xian)生??(sheng)的??(de)雀??(que)鱔??(shan)魚??(yu)類??(lei)屬??(shu)于??(yu)大??(da)型??(xing)的??(de)肉??(rou)食??(shi)性??(xing)魚??(yu)類??(lei)?，成??(cheng)年??(nian)體??(ti)長??(chang)可??(ke)達(dá)??(da)3米?(mi)?，它??(ta)能?(neng)成??(cheng)為?(wei)恐??(kong)龍??(long)時(shí)??(shi)代??(dai)“活??(huo)化??(hua)石??(shi)”的??(de)原??(yuan)因?(yin)主??(zhu)要?(yao)包??(bao)括?(kuo)：一?(yi)是??(shi)雀??(que)鱔??(shan)全??(quan)身??(shen)長??(chang)有??(you)一??(yi)層??(ceng)異??(yi)常??(chang)堅(jiān)??(jian)硬??(ying)的?(de)菱?(ling)形??(xing)魚??(yu)鱗??(lin)?，可??(ke)以??(yi)防??(fang)御??(yu)敵??(di)害??(hai)；二??(er)是??(shi)雀??(que)鱔??(shan)魚??(yu)卵??(luan)有??(you)劇??(ju)毒秘(du)?，不??(bu)可??(ke)食??(shi)用??(yong)?，使?(shi)后??(hou)代??(dai)的??(de)生?(sheng)存??(cun)得??(de)到??(dao)保??(bao)障??(zhang)；三??(san)是?(shi)雀??(que)鱔??(shan)魚??(yu)鰾??(biao)還??(hai)具??(ju)有??(you)呼??(hu)吸?(xi)功??(gong)能??(neng)?，當(dāng)??(dang)水??(shui)中??(zhong)缺??(que)氧??(yang)時(shí)??(shi)?，它??(ta)可??(ke)以??(yi)游??(you)到??(dao)水??(shui)面??(mian)進(jìn)??(jin)行??(xing)呼??(hu)吸??(xi)??。??

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