Jurassic Park filmi 1993’te vizyona girdi\u011finde, bilim insanlar\u0131 filmde tasvir edilen Velociraptor’lar\u0131n o d\u00f6nemde bilinen herhangi bir ger\u00e7ek Velociraptor t\u00fcr\u00fcnden \u00e7ok daha b\u00fcy\u00fck oldu\u011funa hemen dikkat \u00e7ektiler. Ancak sadece bir y\u0131l sonra, paleontologlar Utah’ta Utahraptor ad\u0131nda 21 fit uzunlu\u011funda devasa bir dromaeosaurun kal\u0131nt\u0131lar\u0131n\u0131 ke\u015ffettiler. Bu ke\u015fif, Velociraptor’un aile a\u011fac\u0131nda ger\u00e7ekten devasa \u00fcyeler oldu\u011funu d\u00fc\u015f\u00fcnd\u00fcrd\u00fc.<\/p>\n\n
2022’de, Proceedings of the Royal Society B’de bir ba\u015fka devasa “raptor” duyuruldu: Austroraptor. Bu ke\u015fif, \u00f6zellikle G\u00fcney Amerika’da dromaeosaurlar\u0131n \u00e7e\u015fitlili\u011fi ve evrimi hakk\u0131nda \u0131\u015f\u0131k tuttu\u011fu i\u00e7in \u00f6nemlidir.<\/p>\n\n
Austroraptor, di\u011fer dromaeosaurlarla kar\u015f\u0131la\u015ft\u0131r\u0131ld\u0131\u011f\u0131nda uzun namlular\u0131 ve nispeten k\u0131sa kollar\u0131yla karakterize edilen Unenlagiinae olarak bilinen bir dromaeosaur grubuna aitti. Austroraptor’un iskeletinin b\u00fcy\u00fck bir k\u0131sm\u0131 hala eksik olsa da, kurtar\u0131lan kafatas\u0131, bacak, omurlar ve kol kemikleri bu e\u015fsiz y\u0131rt\u0131c\u0131 hakk\u0131nda de\u011ferli bilgiler sa\u011fl\u0131yor.<\/p>\n\n
Austroraptor’un en dikkat \u00e7ekici \u00f6zelliklerinden biri daha k\u0131sa kollar\u0131d\u0131r. \u00c7ok uzun kollara sahip olan di\u011fer bir\u00e7ok dromaeosaurun aksine, Austroraptor’un humerusu, kollar\u0131n\u0131n Allosaurus ve Carcharodontosaurus gibi daha b\u00fcy\u00fck teropodlar\u0131n kollar\u0131na g\u00f6re daha benzer bir orant\u0131l\u0131 b\u00fcy\u00fckl\u00fckte oldu\u011funu g\u00f6stermektedir. Bu, et\u00e7il teropodlar aras\u0131nda g\u00f6zlemlenen bir e\u011filimle tutarl\u0131d\u0131r: v\u00fccut b\u00fcy\u00fckl\u00fc\u011f\u00fc artt\u0131k\u00e7a kol uzunlu\u011fu azal\u0131r.<\/p>\n\n
Austroraptor’un bacak kemikleri de daha b\u00fcy\u00fck hayvanlar\u0131n \u00f6l\u00e7ekleme gereksinimlerini yans\u0131tarak olduk\u00e7a b\u00fcy\u00fckt\u00fcr. Daha kal\u0131n ve daha g\u00fc\u00e7l\u00fc kemikler, daha b\u00fcy\u00fck g\u00f6vdelerin a\u011f\u0131rl\u0131\u011f\u0131n\u0131 ta\u015f\u0131mak i\u00e7in gereklidir. Austroraptor, Buitreraptor gibi daha k\u00fc\u00e7\u00fck akrabalar\u0131n\u0131n sadece b\u00fcy\u00fct\u00fclm\u00fc\u015f bir versiyonu de\u011fildir; b\u00fcy\u00fckl\u00fc\u011f\u00fcyle ilgili benzersiz uyarlamalar sergiler.<\/p>\n\n
Austroraptor’un ke\u015ffi, Kretase d\u00f6neminde G\u00fcney Amerika’daki y\u0131rt\u0131c\u0131 dinozor ekosistemini anlamam\u0131z a\u00e7\u0131s\u0131ndan \u00f6nemli etkilere sahiptir. Bu bulgu, G\u00fcney Amerika’n\u0131n dromaeosaur \u00e7e\u015fitlili\u011finin bir merkezi oldu\u011funu ve bu dinozorlar\u0131n b\u00fcy\u00fck boyutlara ula\u015ft\u0131\u011f\u0131n\u0131 ve muhtemelen Abelisauridler ve yeni duyurulan Skorpiovenator gibi di\u011fer y\u0131rt\u0131c\u0131larla rekabet etti\u011fini g\u00f6stermektedir.<\/p>\n\n
Austroraptor gibi b\u00fcy\u00fck dromaeosaurlar\u0131n G\u00fcney Amerika’daki varl\u0131\u011f\u0131, bu dinozorlar\u0131n \u00f6ncelikle k\u00fc\u00e7\u00fck, \u00e7evik avc\u0131lar oldu\u011fu y\u00f6n\u00fcndeki geleneksel g\u00f6r\u00fc\u015fe meydan okumaktad\u0131r. Bu, dromaeosaurlar\u0131n \u00e7ok \u00e7e\u015fitli boyutlar ve ekolojik roller sergiledi\u011fini ve besin zincirinde farkl\u0131 ni\u015fleri i\u015fgal edebildiklerini g\u00f6stermektedir.<\/p>\n\n
Austroraptor, G\u00fcney Yar\u0131mk\u00fcre’deki dromaeosaurlar\u0131n \u00e7e\u015fitlili\u011fi ve evrimi hakk\u0131nda de\u011ferli bilgiler sa\u011flayan b\u00fcy\u00fcleyici yeni bir ke\u015fiftir. E\u015fsiz fiziksel \u00f6zellikleri ve ekolojik etkileri, Kretase d\u00f6neminde G\u00fcney Amerika’da var olan karma\u015f\u0131k ve dinamik avc\u0131-av ili\u015fkilerine \u0131\u015f\u0131k tutmaktad\u0131r.<\/p>","protected":false},"excerpt":{"rendered":"
Austroraptor: G\u00fcney Amerika’dan Orak Pen\u00e7eli Dev Bir Katil Ke\u015fif ve \u00d6nem Jurassic Park filmi 1993’te vizyona girdi\u011finde, bilim insanlar\u0131 filmde tasvir edilen Velociraptor’lar\u0131n o d\u00f6nemde bilinen herhangi bir ger\u00e7ek Velociraptor…<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[138],"tags":[5251,5252,1674,554,137,5253],"class_list":["post-2607","post","type-post","status-publish","format-standard","hentry","category-paleontology","tag-austroraptor","tag-dromaeosaurs","tag-south-america","tag-cretaceous","tag-paleontology","tag-prehistoric-predators"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/posts\/2607","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\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/comments?post=2607"}],"version-history":[{"count":1,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/posts\/2607\/revisions"}],"predecessor-version":[{"id":2608,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/posts\/2607\/revisions\/2608"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/media?parent=2607"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/categories?post=2607"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/tags?post=2607"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}