1993\u2019te paleontologlar, dinozor anatomisine dair anlay\u0131\u015flar\u0131n\u0131 sarsan tuhaf bir dinozor olan Mononykus\u2019u g\u00fcn y\u00fcz\u00fcne \u00e7\u0131kard\u0131. Mononykus, deveku\u015funa benzer ince yap\u0131l\u0131 bir dinozor olmas\u0131na ra\u011fmen, k\u0131sa ve tek t\u0131rnakl\u0131 kollar gibi kendine \u00f6zg\u00fc \u00f6zellikler ta\u015f\u0131yordu. Bu \u00f6zellikler onu alvarezsaur olarak adland\u0131r\u0131lan yeni bir gruba yerle\u015ftirdi.<\/p>\n\n
O zamandan bu yana bir\u00e7ok alvarezsaur t\u00fcr\u00fc ke\u015ffedildi. En yeni kat\u0131l\u0131m, e\u015fsiz anatomisinden dolay\u0131 adland\u0131r\u0131lan Linhenykus monodactylus oldu. \u0130\u00e7 Mo\u011folistan\u2019da bulunan k\u0131smi iskeleti 84 ila 75 milyon y\u0131l \u00f6ncesine tarihleniyor. K\u00fc\u00e7\u00fck boyutuna ra\u011fmen, Linhenykus g\u00fc\u00e7l\u00fc yap\u0131l\u0131 \u00f6nkollar\u0131yla dikkat \u00e7ekiyor.<\/p>\n\n
Di\u011fer alvarezsaurlerin aksine, k\u00fc\u00e7\u00fck ve kal\u0131nt\u0131 parmaklara sahip olan t\u00fcrlerin aksine Linhenykus yaln\u0131zca tek i\u015flevsel parma\u011fa sahipti. Bu tek ve sa\u011flam parmak g\u00fc\u00e7l\u00fc bir t\u0131rnakla sonlan\u0131yordu. Ek parmaklar\u0131n bulunmamas\u0131, Linhenykus\u2019u akrabalar\u0131ndan ay\u0131ran dikkat \u00e7ekici bir uzmanla\u015fmad\u0131r.<\/p>\n\n
Linhenykus\u2019un kal\u0131nt\u0131 parmaklar\u0131n\u0131 kaybetmesi, alvarezsaurler aras\u0131nda kademeli bir evrimsel e\u011filimin sonucu de\u011fildir. Bunun yerine, mozaik evrim ad\u0131 verilen bir modeli temsil eder. Linhenykus, erken alvarezsaurlerle ortak atalara ait \u00f6zellikler ta\u015f\u0131r; ancak Mononykus gibi sonraki t\u00fcrlerde g\u00f6r\u00fclmeyen kendine \u00f6zg\u00fc uzmanla\u015fmalar da sergiler.<\/p>\n\n
Alvarezsaurlerin e\u015fsiz \u00f6n kollar\u0131 bilim insanlar\u0131n\u0131 \u015fa\u015f\u0131rtm\u0131\u015ft\u0131r. En kabul g\u00f6ren hipotez, t\u0131rnaklar\u0131n\u0131 kar\u0131nca ve termit yuvalar\u0131n\u0131 kazmak i\u00e7in kulland\u0131klar\u0131n\u0131 \u00f6ne s\u00fcrer. Bu teori, t\u0131rnaklar\u0131n\u0131n modern kar\u0131ncayiyen ve pangolinlerinkine benzerli\u011fiyle desteklenir. Ancak alvarezsaurlerin b\u00f6ceklerle beslendi\u011fine dair do\u011frudan bir kan\u0131t bulunamam\u0131\u015ft\u0131r.<\/p>\n\n
Linhenykus hem arkaik hem de uzmanla\u015fm\u0131\u015f \u00f6zellikler sergiler. Tek parmakl\u0131 \u00f6n kollar\u0131, ba\u015fka hi\u00e7bir alvarezsaurda g\u00f6r\u00fclmeyen bir uzmanla\u015fmad\u0131r. \u00d6te yandan, uzun ve ince bir boyun ile g\u00f6rece ilkel bir kafatas\u0131 gibi atalara ait bir dizi \u00f6zelli\u011fi korur. Bu mozaik evrim deseni, alvarezsaurlerin karma\u015f\u0131k bir evrimsel ge\u00e7mi\u015fe sahip oldu\u011funu d\u00fc\u015f\u00fcnd\u00fcrmektedir.<\/p>\n\n
\u0130lerideki ke\u015fifler ve analizler, alvarezsaurlerin evrimsel ili\u015fkilerini ve davran\u0131\u015flar\u0131n\u0131 ayd\u0131nlatacakt\u0131r. Bilim insanlar\u0131, benzersiz \u00f6n kollar\u0131n\u0131n k\u00f6kenini ve i\u015flevini, ayr\u0131ca antik ekosistemlerdeki ekolojik rollerini ara\u015ft\u0131rmaya devam ediyor. Linhenykus\u2019un ke\u015ffi, bu gizemli dinozor grubunun \u00e7e\u015fitlili\u011fi ve evrimsel dinamikleri hakk\u0131nda yeni g\u00f6r\u00fc\u015fler sa\u011flad\u0131.<\/p>","protected":false},"excerpt":{"rendered":"
Linhenykus: Tek Parmakl\u0131 E\u015fsiz Dinozor Ke\u015fif ve Tan\u0131m 1993\u2019te paleontologlar, dinozor anatomisine dair anlay\u0131\u015flar\u0131n\u0131 sarsan tuhaf bir dinozor olan Mononykus\u2019u g\u00fcn y\u00fcz\u00fcne \u00e7\u0131kard\u0131. Mononykus, deveku\u015funa benzer ince yap\u0131l\u0131 bir dinozor…<\/p>\n","protected":false},"author":2,"featured_media":25277,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[138],"tags":[135,134,136,133,137],"class_list":["post-46","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-paleontology","tag-alvarezsaurs","tag-dinosaurs","tag-evolution","tag-linhenykus","tag-paleontology"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/posts\/46","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=46"}],"version-history":[{"count":2,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/posts\/46\/revisions"}],"predecessor-version":[{"id":25278,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/posts\/46\/revisions\/25278"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/media\/25277"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/media?parent=46"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/categories?post=46"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/tags?post=46"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}