三九養(yǎng)生堂記者 鄧肯·蓋伊 報道
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??(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??(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)??。 來??(lai)自??(zi)中??(zhong)國??(guo)科??(ke)學??(xue)院?(yuan)古??(gu)脊??(ji)椎??(zhui)動?(dong)物??(wu)與??(yu)古??(gu)人??(ren)類??(lei)研??(yan)究??(jiu)所??(suo)(古??(gu)脊??(ji)椎?(zhui)所??(suo))的??(de)最??(zui)新??(xin)消??(xiao)息??(xi)說??(shuo)??，該??(gai)所?(suo)徐??(xu)光??(guang)輝??(hui)研??(yan)究??(jiu)員??(yuan)聯(lián)??(lian)合??(he)曲??(qu)靖?(jing)師??(shi)范??(fan)學??(xue)院??(yuan)馬?(ma)昕??(xin)瑩??(ying)博??(bo)士??(shi)最??(zui)新??(xin)在??(zai)云??(yun)南??(nan)省??(sheng)曲?(qu)靖??(jing)市??(shi)羅??(luo)平??(ping)縣??(xian)約??(yue)2.44億??(yi)年??(nian)前??(qian)的??(de)中??(zhong)三??(san)疊??(die)世??(shi)海??(hai)相??(xiang)地??(di)層??(ceng)發(fā)?(fa)現(xiàn)??(xian)一??(yi)種??(zhong)新??(xin)的??(de)古??(gu)魚??(yu)類??(lei)化??(hua)石??(shi)??，命??(ming)名??(ming)為??(wei)“圓??(yuan)尾??(wei)滇??(dian)東?(dong)魚?(yu)”??，代??(dai)表??(biao)了??(le)世??(shi)界??(jie)上秘(shang)最??(zui)古??(gu)老??(lao)、最??(zui)原??(yuan)始??(shi)的??(de)鉸?(jiao)齒?(chi)魚??(yu)類??(lei)??，為??(wei)揭?(jie)示??(shi)雀??(que)鱔??(shan)魚??(yu)類??(lei)的??(de)起??(qi)源??(yuan)提??(ti)供??(gong)重??(zhong)要??(yao)化??(hua)石??(shi)證??(zheng)據(jù)??(ju)??，相??(xiang)關??(guan)研??(yan)究?(jiu)成??(cheng)果?(guo)論??(lun)文??(wen)近??(jin)日?(ri)在??(zai)英??(ying)國??(guo)牛??(niu)津??(jin)大??(da)學??(xue)出??(chu)版??(ban)的??(de)《林??(lin)奈??(nai)動??(dong)物??(wu)學?(xue)報??(bao)》上??(shang)發(fā)??(fa)表??(biao)??。??
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