{"id":35453,"date":"2019-07-19T03:20:01","date_gmt":"2019-07-19T00:20:01","guid":{"rendered":"https:\/\/bilimvegelecek.com.tr\/?p=35453"},"modified":"2019-07-18T14:44:16","modified_gmt":"2019-07-18T11:44:16","slug":"yeni-calisma-dinozorlarda-iki-ayakliliktan-dort-ayakliliga-gecise-odaklandi","status":"publish","type":"post","link":"https:\/\/bilimvegelecek.com.tr\/index.php\/2019\/07\/19\/yeni-calisma-dinozorlarda-iki-ayakliliktan-dort-ayakliliga-gecise-odaklandi","title":{"rendered":"Dinozorlarda iki ayakl\u0131l\u0131ktan d\u00f6rt ayakl\u0131l\u0131\u011fa ge\u00e7i\u015f!"},"content":{"rendered":"

Bir\u00e7ok dinozor t\u00fcr\u00fc, s\u0131n\u0131rl\u0131 say\u0131daki kal\u0131nt\u0131lar \u00fczerinde yap\u0131lan \u00e7al\u0131\u015fmalar ile bilinmektedir. Bu t\u00fcrlerin y\u00fczde 75\u2019i, be\u015f veya daha az bireye ait kal\u0131nt\u0131lar \u00fczerinden tan\u0131mlanm\u0131\u015ft\u0131r. Auroraceratops rugosus\u2019un 2005 y\u0131l\u0131nda \u00c7in\u2019in kuzeybat\u0131s\u0131ndaki Gobi \u00c7\u00f6l\u00fc\u2019nde bulunan tek bir kafatas\u0131 baz al\u0131narak isimlendirilmesi, bu a\u00e7\u0131dan tipik bir \u00f6rnekti. Ancak bu durum de\u011fi\u015fiklik g\u00f6sterdi.<\/p>\n

Aradan ge\u00e7en y\u0131llar i\u00e7erisinde, bilim insanlar\u0131 Auroraceratops\u2019a ait 80\u2019den fazla fosil kal\u0131nt\u0131s\u0131n\u0131 toplad\u0131 ve bu k\u00fc\u00e7\u00fck g\u00f6vdeli ot\u00e7ullara dair bilgi d\u00fczeyimizi, en bilinen dinozorlarla ayn\u0131 seviyeye getirdi. Bu t\u00fcrler, g\u00fcn\u00fcm\u00fczde hakk\u0131nda en \u00e7ok bilgiye sahip oldu\u011fumuz dinozor t\u00fcrlerinden oldu. Journal of Vertebrate Paleontology dergisinde yay\u0131mlanan inceleme yaz\u0131s\u0131nda ara\u015ft\u0131rmac\u0131lar; anatomi, ya\u015f, tehlikelerden korunma \u015fekilleri ile bu b\u00fcy\u00fck Auroraceratops koleksiyonunun evrimi \u00fczerinde durdular. Bu \u00e7al\u0131\u015fmada; Pensilvanya \u00dcniversitesi\u2019nden, Pensilvanya \u0130ndiana \u00dcniversitesi\u2019nden, \u00c7in Bilimler Akademisi\u2019nden ve Gansu Ziraat \u00dcniversitesi\u2019nden ara\u015ft\u0131rmac\u0131lar bulundu.<\/p>\n

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Bilim insanlar\u0131 Auroraceratops\u2019a ait 80\u2019den fazla fosil kal\u0131nt\u0131s\u0131n\u0131 toplad\u0131 ve bu k\u00fc\u00e7\u00fck g\u00f6vdeli ot\u00e7ullara dair bilgi d\u00fczeyimizi, en bilinen dinozorlarla ayn\u0131 seviyeye getirdi<\/figcaption><\/figure>\n

Ara\u015ft\u0131rmac\u0131lar\u0131n yapt\u0131klar\u0131 inceleme, Triceratops’in de dahil oldu\u011fu Ceratopsia isimli boynuzlu dinozorlar grubunun ilk \u00fcyelerinden olan ve yakla\u015f\u0131k 150 milyon y\u0131l \u00f6nce ya\u015fayan Auroraceratops’u ortaya \u00e7\u0131kard\u0131. Yakla\u015f\u0131k 1.25 metre uzunlu\u011funda, 44 cm geni\u015fli\u011finde olan ve 15.5 kilogram ortalama a\u011f\u0131rl\u0131\u011fa sahip olan Auroraceratops\u2019lar, Triceratops\u2019lar\u0131n aksine daha k\u00fc\u00e7\u00fckt\u00fcr. Boynuzlu bir dinozor olarak karakterize edilen Auroraceratops, k\u0131sa sa\u00e7akl\u0131 t\u00fcylere ve bir gagaya sahipken; Triceratops’un \u201cger\u00e7ek\u201d t\u00fcyleri ve kafataslar\u0131 \u00fczerinde yayg\u0131n s\u00fcsleri yoktur.<\/p>\n

\u201c2004 y\u0131l\u0131nda bu hayvan\u0131 ilk g\u00f6rd\u00fc\u011f\u00fcmde, daha \u00f6nce hi\u00e7 g\u00f6r\u00fclmemi\u015f yeni bir t\u00fcre ait oldu\u011funu hemen anlad\u0131m ve bu durum \u00e7ok heyecan vericiydi\u201d diyen Pensilvanya \u00dcniversitesi Veterinerlik Fak\u00fcltesi\u2019nden Paleontolog Peter Dodson, Auroraceratops hakk\u0131ndaki bu monograf\u0131n uzun zamand\u0131r beklenen bir \u015fey oldu\u011funu belirtti.<\/p>\n

2005 y\u0131l\u0131nda, Dodson ve \u00f6\u011frencileri Hai-Lu Siz ve Matthew Lamanna, bu yeni tan\u0131mlanan t\u00fcre \u201cAuroraceratops\u201d ad\u0131n\u0131 verdi. \u00c7in\u2019de \u00e7al\u0131\u015fma y\u00fcr\u00fcten bilim insan\u0131 Da-Qing Li ile birlikte ara\u015ft\u0131rmac\u0131lar, yavrulardan yeti\u015fkinlere kadar 80’den fazla ek \u00f6rne\u011fi tan\u0131mlayarak bu ke\u015ffi takip ettiler. Pensilvanya Indiana \u00dcniversitesi’nde \u00e7al\u0131\u015fma y\u00fcr\u00fcten Eric Morschhauser, bu g\u00fc\u00e7l\u00fc veri setini kullanarak Auroraceratops’u tan\u0131mlamaya odakland\u0131.<\/p>\n

Auroraceratops\u2019lar; Erken Kretase d\u00f6nemde ya\u015fam\u0131\u015f, Triceratops’lar gibi b\u00fcy\u00fck g\u00f6vdeli Ceratopsia\u2019y\u0131 da kapsayan soy olan Neoseratopsia grubunun bir \u00fcyesidir. Ara\u015ft\u0131rmac\u0131lar; bu ayr\u0131cal\u0131\u011f\u0131n \u00f6nemine vurgu yap\u0131yor ve soy hatlar\u0131ndaki di\u011fer bireyler gibi bu dinozorlar\u0131n da, iki ayakl\u0131l\u0131ktan gergedan benzeri d\u00f6rt ayakl\u0131 b\u00fcy\u00fck hayvanlara d\u00f6n\u00fc\u015ft\u00fc\u011f\u00fcn\u00fc s\u00f6yl\u00fcyorlar. Ara\u015ft\u0131rmac\u0131lara g\u00f6re bu d\u00f6n\u00fc\u015f\u00fcm Kretase d\u00f6neminin sonuna do\u011fru ger\u00e7ekle\u015fmi\u015f.<\/p>\n

Morschhauser, \u201cBu \u00e7al\u0131\u015fma ger\u00e7ekle\u015fmeden \u00f6nce; son iki ayakl\u0131 Ceratopsian\u2019\u0131n neye benzedi\u011fine dair bilgi sahibi olmak i\u00e7in, bu canl\u0131lara daha uzak akrabal\u0131\u011f\u0131 olan ve nadir g\u00f6r\u00fclen bir Ceratopsian olan Psittacosaurus’a bel ba\u011flam\u0131\u015ft\u0131k\u201d a\u00e7\u0131klamalar\u0131nda bulunuyor. Auroraceratops\u2019lar; k\u0131vr\u0131ml\u0131 kal\u00e7a kemi\u011fi ile ince ve uzun pen\u00e7eleriyle, y\u00fcr\u00fcmekle bir ili\u015fkisi bulunmayan ancak t\u00fcr\u00fcn iskeletine has olan \u00e7ok say\u0131da \u00f6zelli\u011fi kendinde muhafaza ediyor. Morschhauser, konuya ili\u015fkin olarak yapt\u0131\u011f\u0131 a\u00e7\u0131klamalara ek yap\u0131yor: Bu \u00e7al\u0131\u015fma, iki ayakl\u0131 ve d\u00f6rt ayakl\u0131 Ceratopsians\u2019lar aras\u0131ndaki de\u011fi\u015fimin ba\u015flang\u0131\u00e7 noktas\u0131yla ilgili daha iyi fikirler sunabilir.<\/p>\n

Kaynak:<\/strong> https:\/\/www.sciencedaily.com\/releases\/2019\/07\/190712174056.htm<\/p>\n","protected":false},"excerpt":{"rendered":"

Bir\u00e7ok dinozor t\u00fcr\u00fc, s\u0131n\u0131rl\u0131 say\u0131daki kal\u0131nt\u0131lar \u00fczerinde yap\u0131lan \u00e7al\u0131\u015fmalar ile bilinmektedir. Bu t\u00fcrlerin y\u00fczde 75\u2019i, be\u015f veya daha az bireye ait kal\u0131nt\u0131lar \u00fczerinden tan\u0131mlanm\u0131\u015ft\u0131r. Auroraceratops rugosus\u2019un 2005 y\u0131l\u0131nda \u00c7in\u2019in kuzeybat\u0131s\u0131ndaki Gobi \u00c7\u00f6l\u00fc\u2019nde bulunan tek bir kafatas\u0131 baz al\u0131narak isimlendirilmesi, bu a\u00e7\u0131dan tipik bir \u00f6rnekti. Ancak bu durum de\u011fi\u015fiklik g\u00f6sterdi. Aradan ge\u00e7en y\u0131llar i\u00e7erisinde, bilim insanlar\u0131 […]<\/p>\n","protected":false},"author":2049,"featured_media":35457,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[19],"tags":[5052,5053,3043,5054,5055],"class_list":["post-35453","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bilim-gundemi","tag-auroraceratops","tag-ceratopsians","tag-dinozor","tag-iki-ayakli","tag-triceratops"],"acf":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/posts\/35453","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/users\/2049"}],"replies":[{"embeddable":true,"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/comments?post=35453"}],"version-history":[{"count":0,"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/posts\/35453\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/media\/35457"}],"wp:attachment":[{"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/media?parent=35453"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/categories?post=35453"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/tags?post=35453"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}