{"id":26349,"date":"2018-07-09T07:07:25","date_gmt":"2018-07-09T04:07:25","guid":{"rendered":"https:\/\/bilimvegelecek.com.tr\/?p=26349"},"modified":"2018-07-08T20:27:11","modified_gmt":"2018-07-08T17:27:11","slug":"jura-doneminin-tuylu-dinozorlarini-ucan-ve-yuzen-memelilerini-gosteren-bir-fosil-toplulugu-bulundu","status":"publish","type":"post","link":"https:\/\/bilimvegelecek.com.tr\/index.php\/2018\/07\/09\/jura-doneminin-tuylu-dinozorlarini-ucan-ve-yuzen-memelilerini-gosteren-bir-fosil-toplulugu-bulundu","title":{"rendered":"Jura d\u00f6neminin t\u00fcyl\u00fc dinozorlar\u0131n\u0131, u\u00e7an ve y\u00fczen memelilerini g\u00f6steren bir fosil toplulu\u011fu bulundu"},"content":{"rendered":"

Yeni ke\u015ffedilen ger\u00e7ek bir Jurassic Park, a\u015fa\u011f\u0131 yukar\u0131 160 milyon y\u0131l \u00f6ncesindeki ya\u015fama dair s\u0131ra d\u0131\u015f\u0131 bir pencere a\u00e7\u0131lmas\u0131n\u0131 sa\u011flad\u0131. Daohugou Biota ismi verilen fosil toplulu\u011funun bulunu\u015fu, Journal of Vertebrate Paleontology<\/em>\u2019nin (Omurgal\u0131 Paleontolojisi Dergisi) son say\u0131s\u0131nda a\u00e7\u0131kland\u0131. Fosil toplulu\u011fu, \u00c7in\u2019in \u0130\u00e7 Mo\u011folistan b\u00f6lgesinde bulundu, evrimsel olarak \u00f6nemli de\u011fi\u015fimlerin oldu\u011fu bir d\u00f6nemde ya\u015fam\u0131\u015f olan \u00e7ok \u00e7e\u015fitli hayvan gruplar\u0131na aitlerdi.<\/p>\n

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b) Daohugou fosil toplulu\u011fundan, d\u0131\u015f solunga\u00e7lar\u0131 da fosil \u00fczerinde g\u00f6r\u00fclebilen bir semender: Chunerpeton tianyiensis.<\/figcaption><\/figure>\n

Toplulu\u011fun i\u00e7inde, bilinen en eski u\u00e7an memeliler, kuyruklu y\u00fczen memeliler, en eski t\u00fcyl\u00fc dinozorlar ve ge\u00e7i\u015f formu olarak kabul edilen, soyu t\u00fckenmi\u015f, s\u0131cak kanl\u0131 u\u00e7an s\u00fcr\u00fcngenler (pterosaur) bulunuyor.<\/p>\n

Omurgal\u0131 Paleontolojisi ve Paleoantropoloji Enstit\u00fcs\u00fc\u2019nden, \u00e7al\u0131\u015fman\u0131n y\u00f6neticisi Corwin Sullivan, \u00e7ok nadir rastlanacak de\u011ferli bir f\u0131rsat yakalad\u0131klar\u0131n\u0131 belirtiyor. Fosiller olduk\u00e7a iyi korunmu\u015f durumda, \u00e7o\u011fu neredeyse t\u00fcm halde ve t\u00fcy, k\u00fcrk, deri gibi yumu\u015fak dokular\u0131, hatta baz\u0131 semenderlerin d\u0131\u015f solunga\u00e7lar\u0131 g\u00f6steriyorlar. Makalenin yazarlar\u0131ndan Yuan Wang, b\u00f6ylesine korunmu\u015f anatomilerin, en erken amfibiyenlerin ve di\u011fer hayvan gruplar\u0131n\u0131n nas\u0131l evrildi\u011fini, nas\u0131l yay\u0131ld\u0131klar\u0131n\u0131 ve di\u011fer t\u00fcrlere nas\u0131l ayr\u0131ld\u0131klar\u0131n\u0131 ortaya \u00e7\u0131karmak konusunda b\u00fcy\u00fck katk\u0131 sa\u011flayaca\u011f\u0131n\u0131 belirtiyor.<\/p>\n

Londra Do\u011fa Tarihi M\u00fczesi\u2019nden ara\u015ft\u0131rmac\u0131 Paul Barrett\u2019e g\u00f6re, Daohugou fosil toplulu\u011fu, geni\u015f ve korunmu\u015f i\u00e7eri\u011fiyle k\u00fcrkl\u00fc dinozorlar\u0131n, erken memelilerin ve u\u00e7an s\u00fcr\u00fcngenlerin evrimiyle ilgili ba\u015f d\u00f6nd\u00fcr\u00fcc\u00fc bir bilgi zeminini olu\u015fturacakt\u0131r.<\/p>\n

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Daohugou fosil toplulu\u011fundan bir memeli \u00f6rne\u011fi: Juramaia sinensis<\/figcaption><\/figure>\n

Bu fosil toplulu\u011funun en de\u011ferli y\u00f6n\u00fc, ayn\u0131 b\u00f6lgede daha \u00f6nce bulunmu\u015f olan Jehol Biota fosil toplulu\u011fundan 30 milyon y\u0131l \u00f6nceki bir d\u00f6neme tarihlendirilmesidir. Jehol Biota fosil toplulu\u011fu, kuzeydo\u011fu \u00c7in b\u00f6lgesinde bulunmu\u015ftur ve kretase d\u00f6neminde ya\u015fam\u0131\u015f olan t\u00fcyl\u00fc dinozorlar, erken d\u00f6nem ku\u015flar\u0131 ve memeli canl\u0131lara g\u00fc\u00e7l\u00fc bir \u0131\u015f\u0131k tutmu\u015ftur.<\/p>\n

\u0130ki fosil toplulu\u011fu birbirinden milyon y\u0131llarla ayr\u0131lm\u0131\u015f olsa da, buluntular\u0131 kar\u015f\u0131la\u015ft\u0131rmak ve z\u0131tl\u0131klar\u0131 ortaya \u00e7\u0131karmak, dinozorlar\u0131n, memelilerin, amfibiyenlerin ve di\u011fer hayvan gruplar\u0131n\u0131n temelde ayn\u0131 b\u00f6lgede farkl\u0131 d\u00f6nemlerde nas\u0131l ya\u015fad\u0131klar\u0131n\u0131 g\u00f6sterecektir. Bu bak\u0131mdan t\u00fcyl\u00fc dinozor buluntusu ba\u015fl\u0131 ba\u015f\u0131na \u00e7arp\u0131c\u0131d\u0131r.<\/p>\n

Sullivan, kuzeydo\u011fu \u00c7in b\u00f6lgesinde bulunan kretase d\u00f6nemi t\u00fcyl\u00fc dinozor buluntusunun, yay\u0131mland\u0131\u011f\u0131ndan beri ge\u00e7en 20 y\u0131lda paleontologlar\u0131 bir hayli \u015fa\u015f\u0131rtt\u0131\u011f\u0131n\u0131, Daohugou Biota fosillerinin ise ayn\u0131 b\u00f6lgede ya\u015fayan canl\u0131lar\u0131n\u0131n jurassic d\u00f6nemindeki benzerlerini sundu\u011funu belirtiyor.<\/p>\n","protected":false},"excerpt":{"rendered":"

Yeni ke\u015ffedilen ger\u00e7ek bir Jurassic Park, a\u015fa\u011f\u0131 yukar\u0131 160 milyon y\u0131l \u00f6ncesindeki ya\u015fama dair s\u0131ra d\u0131\u015f\u0131 bir pencere a\u00e7\u0131lmas\u0131n\u0131 sa\u011flad\u0131. Daohugou Biota ismi verilen fosil toplulu\u011funun bulunu\u015fu, Journal of Vertebrate Paleontology\u2019nin (Omurgal\u0131 Paleontolojisi Dergisi) son say\u0131s\u0131nda a\u00e7\u0131kland\u0131. Fosil toplulu\u011fu, \u00c7in\u2019in \u0130\u00e7 Mo\u011folistan b\u00f6lgesinde bulundu, evrimsel olarak \u00f6nemli de\u011fi\u015fimlerin oldu\u011fu bir d\u00f6nemde ya\u015fam\u0131\u015f olan \u00e7ok \u00e7e\u015fitli […]<\/p>\n","protected":false},"author":42,"featured_media":26318,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[159,19],"tags":[2893,239,3399],"class_list":["post-26349","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-122-sayi","category-bilim-gundemi","tag-dinazorlar","tag-fosiller","tag-jurassic-park"],"acf":[],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t