三九養(yǎng)生堂記者 鄧肯·蓋伊 報道
精彩| 中??(zhong)新?(xin)網(wǎng)??(wang)北?(bei)京??(jing)10月??(yue)19日??(ri)電??(dian) (記??(ji)者??(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??(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??(guan)研??(yan)究??(jiu)長??(chang)期??(qi)以??(yi)來??(lai)備??(bei)受??(shou)關??(guan)注?(zhu)??。?? 鉸??(jiao)齒??(chi)魚??(yu)類??(lei)的??(de)起??(qi)源??(yuan)和??(he)早??(zao)期??(qi)演??(yan)化??(hua)是??(shi)中?(zhong)國??(guo)科??(ke)學??(xue)院??(yuan)古??(gu)脊??(ji)椎?(zhui)所??(suo)中??(zhong)生??(sheng)代??(dai)魚??(yu)類??(lei)研??(yan)究??(jiu)團??(tuan)隊??(dui)的??(de)重??(zhong)要?(yao)課??(ke)題??(ti)之??(zhi)一??(yi)??，該??(gai)團??(tuan)隊??(dui)近??(jin)年??(nian)來?(lai)的??(de)研??(yan)究??(jiu)表??(biao)明??(ming)??，鉸??(jiao)齒?(chi)魚??(yu)類??(lei)的??(de)起??(qi)源?(yuan)時??(shi)間?(jian)比??(bi)恐??(kong)龍??(long)還??(hai)要?(yao)早??(zao)??，恐??(kong)龍??(long)最?(zui)早??(zao)出?(chu)現(xiàn)??(xian)在??(zai)晚??(wan)三??(san)疊??(die)世??(shi)??，而??(er)最?(zui)古??(gu)老??(lao)的??(de)鉸??(jiao)齒??(chi)魚?(yu)類??(lei)在??(zai)中??(zhong)國??(guo)中??(zhong)三??(san)疊??(die)世??(shi)早??(zao)期??(qi)的??(de)羅??(luo)平??(ping)生??(sheng)物??(wu)群??(qun)中??(zhong)就??(jiu)已??(yi)經(jīng)??(jing)出??(chu)現(xiàn)??(xian)??，以??(yi)拱??(gong)魚??(yu)目??(mu)和??(he)這??(zhe)次??(ci)新??(xin)發(fā)?(fa)現(xiàn)??(xian)的??(de)圓??(yuan)尾?(wei)滇??(dian)東??(dong)魚??(yu)為??(wei)代??(dai)表??(biao)??。??(完??(wan))
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