meilong.ppt

《meilong.ppt》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、ThespaceadventureoflittleMeilong《小寐龙的时空大冒险》Wakingupfromalongsleep,thelittleMeilongfoundhimselfinastrangeplaceHeheardthatthescientistsfromChinawouldsearchforhislivingyearsandplace,andhethoughthecouldalsodothat.Sohecamebackto82millionyears’agoandfoundwithexcessivespeed.LittleM

2、eilongfoundvariouskindsofmiraculousanimalsindifferentyearsandplaces.Finally,thelittleMeilongfoundhishomeinChinaHewassurroundedbyhisfamiliesandfriendsThenhewenttosleeppeacefully……Andthetruestoryis……Afterbeingembedded（埋入）involcanicash（火山灰）forbetween128millionto139millionyears,

3、ayoungdinosaurhasbeendiscoveredbypaleontologistsinChinadozing（沉睡）justlikeabird.Meiisagenus（属）ofduck-sizedtroodontid(伤齿龙）dinosaurfirstunearthedbypaleontologistsinLiaoning,Chinain2004.MeilivedduringtheEarlyCretaceous（白垩纪）Period.Itsname,Meilong,meansdragonsleepsoundly.Thetypefo

4、ssilisayoungjuvenile（少年）,completeandexceptionallywellpreservedinthree-dimensional（三维）detail,withtheheadnestled(依偎）beneathoneoftheforelimbs,similartotheroosting（栖息）positionofmodernbirds.Thechemistryofthematrixstone（石头基岩）andtherestingposeindicatethelivinganimalwasprobablyburie

5、dinstantlyinvolcanicash.Troodontid:oneofthemostbirdliketypesofdinosaurs.Itwasayoungadultwithasmallskull(颅骨）,shorttrunk（身躯）andverylonghind（后面的）limbs（翼）,indicatingitcouldrunwellontwolegs.Itsheadtuckedunderitsforelimbinamannersimilartoabird.Itisthefirstsuchfossiltobefoundinasle

6、epingpose.Modernbirdsalwaystucktheirheadsunderonewingtoconserveheat,soitindicatesthecharacteristicsprobablyoriginatedindinosaurancestorsofmodernbirds.Sothespecimen‘sbird-like-posturealsocouldhint(暗示）thatthisanimalwaswarm-blooded.Severalfeaturessuchasitspostureandlooksalsoind

7、icatethattwoanimalsmayoriginatefromthesameancestor,andtheirflyingcapabilitycanbeanevolutionaryresultofbecominglighterinweight.“Thespecimendisplaystheearliestrecordedoccurrenceofstereotypical(形象）sleepingorrestingbehaviourfoundinlivingbirds."Liaoningprovinceisfastbecomingahot-

8、spotfordinosaurhunterslookingforevidenceofbehaviourinfossilisedvertebrates（