1947’de, paleontolog C.C. Young, \u00c7in’in Lufeng yak\u0131nlar\u0131nda fosille\u015fmi\u015f bir kafatas\u0131 par\u00e7as\u0131 ke\u015ffetti. Ba\u015flang\u0131\u00e7ta bunun Lufengosaurus ad\u0131 verilen uzun boyunlu bir dinozora ait oldu\u011funa inand\u0131. Ancak birka\u00e7 y\u0131l sonra, bunu timsahlara benzeyen eski bir arkozor olan fitosaur olarak yeniden s\u0131n\u0131fland\u0131rd\u0131.<\/p>\n\n
Fosil, fitosaurlar i\u00e7in \u00f6nemli bir kilometre ta\u015f\u0131 olmaya devam etti, \u00e7\u00fcnk\u00fc bunlar\u0131n ba\u015fka yerlerde yok olduktan milyonlarca y\u0131l sonra hayatta kald\u0131klar\u0131n\u0131 g\u00f6steriyordu. Ancak t\u00fcm paleontologlar Young’\u0131n tan\u0131mlamas\u0131na kat\u0131lmad\u0131. Baz\u0131lar\u0131, par\u00e7an\u0131n tam s\u0131n\u0131fland\u0131rmas\u0131n\u0131 belirlemek i\u00e7in \u00e7ok hasarl\u0131 oldu\u011funu savundu.<\/p>\n\n
Son y\u0131llarda, paleontologlar Paul Barrett ve Xu Xing, Pa\u015fisukus fosilini yeniden incelediler. Fitosaurlar\u0131n ana \u00f6zelliklerini, \u00f6rne\u011fin burun deliklerinin a\u011f\u0131zda \u00e7ok geride olmas\u0131 gibi \u00f6zelliklere sahip olmad\u0131\u011f\u0131n\u0131 ke\u015ffettiler. Bunun yerine, sauropodomorf dinozorlar\u0131nkine uyan \u00e7ok say\u0131da \u00f6zellik sergiledi.<\/p>\n\n
Barrett ve Xu, Pa\u015fisukus’un bir fitosaur de\u011fil, sauropodomorf bir dinozor oldu\u011fu sonucuna vard\u0131. Sauropodomorflar, Brachiosaurus gibi uzun boyunlu devleri i\u00e7eren \u00e7e\u015fitli bir dinozor grubuydu. Pa\u015fisukus \u00e7ene par\u00e7as\u0131, ait oldu\u011fu dinozor t\u00fcr\u00fcn\u00fc tam olarak tan\u0131mlamak i\u00e7in \u00e7ok hasarl\u0131d\u0131r, ancak muhtemelen daha \u00f6nce bilinmeyen bir sauropodomorf t\u00fcr\u00fcn\u00fc temsil etmektedir.<\/p>\n\n
Pa\u015fisukus’un bir dinozor olarak yeniden s\u0131n\u0131fland\u0131r\u0131lmas\u0131, dinozorlar\u0131n ve fitosaurlar\u0131n bir arada bulunmas\u0131 hakk\u0131ndaki anlay\u0131\u015f\u0131m\u0131z i\u00e7in sonu\u00e7lar do\u011furmaktad\u0131r. Erken dinozorlar\u0131n yan\u0131nda ya\u015fayan ve onlarla beslenen fitosaurlar\u0131n Triyas d\u00f6neminin sonunda neslinin t\u00fckendi\u011fi d\u00fc\u015f\u00fcn\u00fcl\u00fcyordu. Ancak Asya’da \u00f6nerilen Jura fitosauru olaylar\u0131 olduk\u00e7a \u015f\u00fcpheliydi.<\/p>\n\n
Asya’da Jura fitosaurlar\u0131n\u0131n yoklu\u011fu, bu yarat\u0131klar\u0131n daha \u00f6nce d\u00fc\u015f\u00fcn\u00fcld\u00fc\u011f\u00fcnden daha erken yok olmu\u015f olabilece\u011fini d\u00fc\u015f\u00fcnd\u00fcrmektedir. Bu, dinozorlar\u0131n fitosaurlar\u0131n ve di\u011fer b\u00fcy\u00fck arkozor avc\u0131lar\u0131n neslinin t\u00fckenmesinden sonra k\u00fcresel egemenli\u011fe y\u00fckseldi\u011fi hipotezini desteklemektedir.<\/p>\n\n
Pa\u015fisukus’un yeniden s\u0131n\u0131fland\u0131r\u0131lmas\u0131, dinozorlar\u0131n evrimi hakk\u0131nda yeni bilgiler sa\u011fl\u0131yor. Sauropodomorf dinozorlar\u0131n \u00e7e\u015fitlili\u011finin daha \u00f6nce d\u00fc\u015f\u00fcn\u00fcld\u00fc\u011f\u00fcnden daha b\u00fcy\u00fck olabilece\u011fini g\u00f6steriyor. Ayr\u0131ca, erken Jura d\u00f6neminde dinozorlar ve di\u011fer arkozorlar aras\u0131ndaki rekabeti sorgulamaktad\u0131r.<\/p>\n\n
Pa\u015fisukus yeniden s\u0131n\u0131fland\u0131rmas\u0131n\u0131n sonu\u00e7lar\u0131n\u0131 tam olarak anlamak i\u00e7in daha fazla ara\u015ft\u0131rmaya ihtiya\u00e7 vard\u0131r. Paleontologlar, Pa\u015fisukus ile di\u011fer dinozorlar aras\u0131ndaki tam ili\u015fkileri belirlemek i\u00e7in fosil kay\u0131tlar\u0131n\u0131 incelemeye ve filogenetik analizler yapmaya devam ediyorlar. Bu \u00e7al\u0131\u015fmalar, bu kadim yarat\u0131klar\u0131n karma\u015f\u0131k evrimsel tarihine \u0131\u015f\u0131k tutacakt\u0131r.<\/p>","protected":false},"excerpt":{"rendered":"
Pa\u015fisukus: Yeniden Ke\u015ffedilen Gizli Dinozor Gizemli Bir \u00c7ene Par\u00e7as\u0131n\u0131n Yeniden S\u0131n\u0131fland\u0131r\u0131lmas\u0131 1947’de, paleontolog C.C. Young, \u00c7in’in Lufeng yak\u0131nlar\u0131nda fosille\u015fmi\u015f bir kafatas\u0131 par\u00e7as\u0131 ke\u015ffetti. Ba\u015flang\u0131\u00e7ta bunun Lufengosaurus ad\u0131 verilen uzun boyunlu…<\/p>\n","protected":false},"author":1,"featured_media":23920,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1011],"tags":[2704,20292,137,20293,941],"class_list":["post-15218","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-paleontology-and-evolution","tag-dinosaur","tag-pachysuchus","tag-paleontology","tag-phytosaur","tag-sauropodomorph"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/posts\/15218","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\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/comments?post=15218"}],"version-history":[{"count":1,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/posts\/15218\/revisions"}],"predecessor-version":[{"id":15219,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/posts\/15218\/revisions\/15219"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/media\/23920"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/media?parent=15218"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/categories?post=15218"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/tags?post=15218"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}