2010 y\u0131l\u0131 Mart ay\u0131nda, Roger Benson liderli\u011findeki bir paleontolog ekibi, Avustralya’da bir tyrannosauroid dinozora ait k\u0131smi bir kal\u00e7a kemi\u011fi ke\u015ffini a\u00e7\u0131klad\u0131. Bu ke\u015fif, bu dinozor grubunun g\u00fcney k\u0131tada ilk kan\u0131t\u0131 olarak kayda ge\u00e7ti.<\/p>\n\n
Kal\u00e7a kemi\u011fi, pubis olarak bilinir ve tyrannosaur’lar\u0131n, \u00f6zellikle son evrimle\u015fen t\u00fcrlerinin ay\u0131rt edici bir \u00f6zelli\u011fidir. Avustralya \u00f6rne\u011fi, tyrannosaur’a ait oldu\u011funu d\u00fc\u015f\u00fcnd\u00fcren birka\u00e7 \u00f6zellik sergiledi; bunlar aras\u0131nda g\u00fc\u00e7l\u00fc bir \u015fekil ve a\u015fa\u011f\u0131ya do\u011fru y\u00f6nelmi\u015f \u00f6n k\u0131sm\u0131 yer al\u0131yordu.<\/p>\n\n
Ancak, Science dergisinde yak\u0131n zamanda yay\u0131mlanan bir yorumda Matthew Herne, Jay Nair ve Steven Salisbury, Avustralya’da bir tyrannosaur oldu\u011funa dair kan\u0131tlar\u0131n Benson’\u0131n \u00f6ne s\u00fcrd\u00fc\u011f\u00fc kadar g\u00fc\u00e7l\u00fc olmad\u0131\u011f\u0131n\u0131 ileri s\u00fcrd\u00fc.<\/p>\n\n
Herne ve meslekta\u015flar\u0131, kemikleri tyrannosaur olarak te\u015fhis etmek i\u00e7in ba\u015flang\u0131\u00e7ta kullan\u0131lan anatomik detaylar\u0131n, tyrannosaur’lar\u0131 da i\u00e7ine alan et\u00e7il dinozorlar grubu olan di\u011fer theropodlarda da g\u00f6r\u00fcld\u00fc\u011f\u00fcne dikkat \u00e7ekti. Onlara g\u00f6re, Avustralya’daki kemikler, Avustralya’dan zaten bilinen di\u011fer theropod t\u00fcrlerinden biri\u2014\u00f6rne\u011fin coelurosaur’lar ya da carcharodontosaurian’lar\u2014olabilirdi.<\/p>\n\n
Orijinal makalenin yazarlar\u0131ndan Benson ve meslekta\u015flar\u0131, Herne’\u0131n yorumuna kat\u0131lmad\u0131. Yorumla birlikte yay\u0131mlanan yan\u0131tta, kal\u00e7a kemi\u011finin pubic tubercle ad\u0131 verilen tuhaf bir \u00f6zelli\u011finin tyrannosaur’lardaki ayn\u0131 yap\u0131ya en \u00e7ok benzedi\u011fini savundular.<\/p>\n\n
Pubic tubercle k\u0131r\u0131k olsa da, eksik k\u0131sm\u0131n y\u00f6nelimi h\u00e2l\u00e2 belirlenebilir. Benson ve ekibi, kemi\u011fin tam olsayd\u0131 tyrannosauroid dinozorlar\u0131nkine benzer bir durum g\u00f6sterece\u011fine inan\u0131yor.<\/p>\n\n
Avustralya’da olas\u0131 bir tyrannosaur ke\u015ffi, dinozor \u00e7e\u015fitlili\u011fi ve co\u011frafi da\u011f\u0131l\u0131m\u0131 konusundaki anlay\u0131\u015f\u0131m\u0131z \u00fczerinde etkiler yarat\u0131yor.<\/p>\n\n
On y\u0131llar boyunca, paleontologlar dinozorlar\u0131 iki ana gruba ay\u0131r\u0131labilece\u011fine inand\u0131: kuzey (Laurasian) ve g\u00fcney (Gondwanan). Ancak son ke\u015fifler, bu ayr\u0131m\u0131n sand\u0131\u011f\u0131m\u0131z kadar basit olmad\u0131\u011f\u0131n\u0131 g\u00f6sterdi.<\/p>\n\n
Avustralya theropodu Australoventaor’un en yak\u0131n akrabas\u0131, \u00f6rne\u011fin Japonya’dan Fukuiraptor. Bu ke\u015fif, baz\u0131 dinozor gruplar\u0131n\u0131n bir zamanlar co\u011frafi engeller olarak d\u00fc\u015f\u00fcn\u00fclen yerleri a\u015fabildi\u011fini d\u00fc\u015f\u00fcnd\u00fcr\u00fcyor.<\/p>\n\n
Avustralya tyrannosauru’nun kimli\u011fi \u00fczerine tart\u0131\u015fma s\u00fcr\u00fcyor. \u0130ki ara\u015ft\u0131rma grubu ayn\u0131 fosillere bakt\u0131 ve \u00e7ok farkl\u0131 sonu\u00e7lara vard\u0131. Kemiklerin bir tyrannosaur’a m\u0131 yoksa ba\u015fka bir theropod t\u00fcr\u00fcne mi ait oldu\u011funu kesin olarak anlamak i\u00e7in daha fazla fosile ihtiya\u00e7 var.<\/p>\n\n
Paleontologlar, tart\u0131\u015fmal\u0131 bu Avustralya dinozorundan gelecek yeni kal\u0131nt\u0131lar\u0131n a\u00e7\u0131klanmas\u0131n\u0131 sab\u0131rs\u0131zl\u0131kla bekliyor. Ek fosiller, daha kesin kan\u0131tlar sa\u011flayabilir ve onun kimli\u011fi \u00fczerindeki tart\u0131\u015fmay\u0131 \u00e7\u00f6zmede yard\u0131mc\u0131 olabilir.<\/p>\n\n
Bu arada, Avustralya’da olas\u0131 bir tyrannosaur ke\u015ffi, paleontologlar aras\u0131nda heyecan ve tart\u0131\u015fma yaratt\u0131. Bu durum, dinozor \u00e7e\u015fitlili\u011fi ve da\u011f\u0131l\u0131m\u0131 konusundaki anlay\u0131\u015f\u0131m\u0131z\u0131n yeni ke\u015fiflerle s\u00fcrekli evrildi\u011fini hat\u0131rlat\u0131yor.<\/p>","protected":false},"excerpt":{"rendered":"
Avustralya Tyrant Dinosaurunun Kimli\u011fi \u00dczerine Tart\u0131\u015fma Ke\u015fif ve Tan\u0131m 2010 y\u0131l\u0131 Mart ay\u0131nda, Roger Benson liderli\u011findeki bir paleontolog ekibi, Avustralya’da bir tyrannosauroid dinozora ait k\u0131smi bir kal\u00e7a kemi\u011fi ke\u015ffini a\u00e7\u0131klad\u0131.…<\/p>\n","protected":false},"author":2,"featured_media":25155,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[138],"tags":[1341,97,6326,2704,1532,137,5677,6325],"class_list":["post-3269","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-paleontology","tag-australia","tag-science","tag-debate","tag-dinosaur","tag-discovery","tag-paleontology","tag-theropod","tag-tyrannosaur"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/posts\/3269","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/comments?post=3269"}],"version-history":[{"count":2,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/posts\/3269\/revisions"}],"predecessor-version":[{"id":25156,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/posts\/3269\/revisions\/25156"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/media\/25155"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/media?parent=3269"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/categories?post=3269"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/tags?post=3269"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}