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　　三九養(yǎng)生堂記者 鄧肯·蓋伊 報道

精彩|　　本?(ben)次??(ci)研?(yan)究??(jiu)發(fā)??(fa)現(xiàn)??(xian)的??(de)圓??(yuan)尾??(wei)滇??(dian)東??(dong)魚??(yu)化?(hua)石??(shi)共??(gong)有??(you)13塊??(kuai)??，它??(ta)是??(shi)一??(yi)種??(zhong)長??(chang)梭??(suo)形?(xing)小??(xiao)魚??(yu)??，次??(ci)圓??(yuan)形??(xing)尾??(wei)??，全??(quan)身??(shen)布??(bu)滿?(man)烏?(wu)黑??(hei)發(fā)??(fa)亮??(liang)的??(de)方??(fang)鱗?(lin)??，最??(zui)大??(da)個??(ge)體??(ti)全??(quan)長??(chang)只??(zhi)有??(you)5厘??(li)米??(mi)??，代??(dai)表??(biao)了??(le)羅??(luo)平??(ping)生??(sheng)物??(wu)群??(qun)中??(zhong)體??(ti)型??(xing)最??(zui)小??(xiao)的??(de)鉸??(jiao)齒??(chi)魚?(yu)類??(lei)??。??年??(nian)代??(dai)地??(di)層??(ceng)學??(xue)研??(yan)究??(jiu)確??(que)定??(ding)羅??(luo)平??(ping)生??(sheng)物??(wu)群??(qun)年??(nian)代??(dai)距?(ju)今??(jin)約??(yue)2.44億??(yi)年??(nian)??，因??(yin)此??(ci)??，圓??(yuan)尾??(wei)滇?(dian)東??(dong)魚??(yu)也??(ye)代?(dai)表??(biao)了??(le)世??(shi)界??(jie)上??(shang)最??(zui)古??(gu)老??(lao)的?(de)鉸??(jiao)齒??(chi)魚??(yu)類??(lei)之??(zhi)一??(yi)???！　?(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)世秘(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??(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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