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)???！ ≈??(zhong)新??(xin)網(wǎng)??(wang)北??(bei)京??(jing)10月??(yue)19日??(ri)電??(dian) (記??(ji)者秘(zhe) 孫??(sun)自??(zi)法??(fa))現(xiàn)??(xian)生??(sheng)于??(yu)北??(bei)美??(mei)淡??(dan)水?(shui)環(huán)??(huan)境??(jing)的??(de)雀??(que)鱔??(shan)魚??(yu)??，早??(zao)在??(zai)1億?(yi)年??(nian)前??(qian)的??(de)白??(bai)堊??(e)紀(jì)??(ji)就??(jiu)和??(he)恐??(kong)龍?(long)一?(yi)同??(tong)生??(sheng)活??(huo)??，恐??(kong)龍??(long)滅??(mie)絕??(jue)了??(le)??，它??(ta)卻??(que)能??(neng)存??(cun)活??(huo)至??(zhi)今??(jin)??，其??(qi)起?(qi)源??(yuan)演??(yan)化??(hua)相??(xiang)關(guān)??(guan)研??(yan)究??(jiu)長(zhǎng)??(chang)期?(qi)以??(yi)來(lái)??(lai)備??(bei)受??(shou)關(guān)?(guan)注??(zhu)??。??
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