{"id":7494,"date":"2026-03-13T08:35:44","date_gmt":"2026-03-13T06:35:44","guid":{"rendered":"https:\/\/www.schooler.org.ua\/uk-uagigantska-noga-tiranozavra-rozkrivaye-isnuvannja-starodavnogo\/"},"modified":"2026-03-13T08:35:44","modified_gmt":"2026-03-13T06:35:44","slug":"uk-uagigantska-noga-tiranozavra-rozkrivaye-isnuvannja-starodavnogo","status":"publish","type":"post","link":"https:\/\/www.schooler.org.ua\/cs\/uk-uagigantska-noga-tiranozavra-rozkrivaye-isnuvannja-starodavnogo\/","title":{"rendered":"Giant T-Rex Leg odhaluje existenci starov\u011bk\u00e9ho obra"},"content":{"rendered":"

V\u00fdjime\u010dn\u011b velk\u00fd T. rex femur objeven\u00fd v Nov\u00e9m Mexiku p\u0159episuje na\u0161e ch\u00e1p\u00e1n\u00ed t\u011bchto dominantn\u00edch pred\u00e1tor\u016f. Fosilie, holenn\u00ed kost dlouh\u00e1 t\u0159i stopy (asi 91 cm) a p\u011bt palc\u016f v pr\u016fm\u011bru (asi 13 cm), nazna\u010duje, \u017ee dinosaurus v\u00e1\u017e\u00edc\u00ed v\u00edce ne\u017e 4 536 kg se po Severn\u00ed Americe potuloval p\u0159ibli\u017en\u011b p\u0159ed 74 miliony let. Tento objev posouv\u00e1 \u010dasov\u00fd r\u00e1mec ob\u0159\u00edch tyranosaur\u016f a potvrzuje mo\u017en\u00fd severoamerick\u00fd p\u016fvod skupiny. <\/p>\n

Pred\u00e1tor p\u0159edb\u011bhl svou dobu<\/h3>\n

Kost byla z\u00edsk\u00e1na z formace Kirtland v severoz\u00e1padn\u00edm Nov\u00e9m Mexiku, oblasti datovan\u00e9 do pozdn\u00edho kamp\u00e1nsk\u00e9ho v\u011bku. B\u011bhem tohoto obdob\u00ed byla modern\u00ed Severn\u00ed Amerika subtropickou krajinou roz\u0159ezanou obrovsk\u00fdm vnitrozemsk\u00fdm mo\u0159em, kter\u00e9 se t\u00e1hlo od Mexick\u00e9ho z\u00e1livu a\u017e po Arktidu. Tento konkr\u00e9tn\u00ed tyranosaurus \u017eil pobl\u00ed\u017e z\u00e1padn\u00edho pob\u0159e\u017e\u00ed t\u00e9to mo\u0159sk\u00e9 cesty, v hust\u00e9 s\u00edti d\u017eungl\u00ed a les\u016f, kter\u00e9 se hem\u017eily obrn\u011bn\u00fdmi, rohat\u00fdmi a kachnozob\u00fdmi dinosaury. <\/p>\n

\u201eP\u0159edstavte si sou\u010dasn\u00e9 pob\u0159e\u017e\u00ed Mexick\u00e9ho z\u00e1livu \u2013 n\u00edzko polo\u017eenou nivu \u2013 ale p\u0159ed 74 miliony let,\u201c vysv\u011btluje Anthony Fiorillo, paleontolog z Muzea p\u0159\u00edrodn\u00ed historie a v\u011bdy v Nov\u00e9m Mexiku. Ekosyst\u00e9m byl bujn\u00fd, podporoval celou \u0159adu rostlin v\u010detn\u011b jehli\u010dnan\u016f, kvetouc\u00edch rostlin, kapradin a p\u0159esli\u010dek. <\/p>\n

V\u00edce, ne\u017e se o\u010dek\u00e1valo<\/h3>\n

Obrovsk\u00e1 velikost kosti v\u011bdce p\u0159ekvapila, ale je\u0161t\u011b v\u00fdznamn\u011bj\u0161\u00ed je jej\u00ed st\u00e1\u0159\u00ed. Fosilie je star\u0161\u00ed, ne\u017e se o\u010dek\u00e1valo pro tyranosaury jej\u00ed velikosti, co\u017e zpochyb\u0148uje existuj\u00edc\u00ed teorie o jej\u00ed evolu\u010dn\u00ed \u010dasov\u00e9 ose. <\/p>\n

“Faktem je, \u017ee se jedn\u00e1 o velmi velk\u00e9ho tyranosaura na svou dobu a geologicky mnohem star\u0161\u00edho, ne\u017e by kdokoli p\u0159edpov\u00eddal,” \u0159\u00edk\u00e1 Spencer Lucas, dal\u0161\u00ed paleontolog zapojen\u00fd do studie. <\/p>\n

Kost je jen o n\u011bco men\u0161\u00ed ne\u017e odpov\u00eddaj\u00edc\u00ed kon\u010detina “Sue”, nejv\u011bt\u0161\u00edho a nej\u00fapln\u011bj\u0161\u00edho exempl\u00e1\u0159e Tyrannosaura rex<\/em>, kter\u00fd byl kdy nalezen v Chicagsk\u00e9m muzeu. To znamen\u00e1, \u017ee Tyrannosaurus z Nov\u00e9ho Mexika byl pravd\u011bpodobn\u011b nejv\u011bt\u0161\u00edm maso\u017erav\u00fdm dinosaurem sv\u00e9 \u00e9ry a v\u00e1\u017eil v\u00fdrazn\u011b v\u00edce ne\u017e pozd\u011bj\u0161\u00ed tyranosau\u0159i (p\u0159ibli\u017en\u011b 4 685 kg oproti 1 814\u20132 722 kg pozorovan\u00fdm u pozd\u011bj\u0161\u00edch fosili\u00ed). <\/p>\n

D\u016fsledky pro p\u016fvod tyranosaur\u016f<\/h3>\n

Tento objev podporuje my\u0161lenku, \u017ee tyranosau\u0159i mohli poch\u00e1zet ze Severn\u00ed Ameriky, zejm\u00e9na z ji\u017en\u00ed \u010d\u00e1sti kontinentu. To zpochyb\u0148uje konkuren\u010dn\u00ed teorie, kter\u00e9 umis\u0165uj\u00ed evolu\u010dn\u00ed ko\u0159eny t\u011bchto dinosaur\u016f do Asie. Charakteristiky kosti nazna\u010duj\u00ed bl\u00edzkou p\u0159\u00edbuznost s Tyrannosaurus rex<\/em> a Tyrannosaurus mcraeensis<\/em>, mo\u017en\u00e1 ji \u0159ad\u00ed do ran\u00e9 v\u011btve skupiny Tyrannosaurini (kter\u00e1 zahrnuje takov\u00e9 ikonick\u00e9 druhy jako Tarbosaurus<\/em> a Zhuchengtyrannus<\/em> ). <\/p>\n

Debata v\u0161ak zdaleka nekon\u010d\u00ed. K ur\u010den\u00ed skute\u010dn\u00e9ho p\u016fvodu tyranosaur\u016f jsou pot\u0159eba dal\u0161\u00ed vykop\u00e1vky jak v Severn\u00ed Americe, tak v Asii. Kompletn\u00ed kostra je tak\u00e9 z\u00e1sadn\u00ed pro p\u0159esnou identifikaci druhu, objasn\u011bn\u00ed jeho vztah\u016f s jin\u00fdmi tyranosaury a up\u0159esn\u011bn\u00ed odhad\u016f velikosti. <\/p>\n

\n

\u201eV\u011bda je proces, kter\u00fd se vyv\u00edj\u00ed podle vlastn\u00edho pl\u00e1nu,\u201c \u0159\u00edk\u00e1 Fiorillo. “Ka\u017ed\u00fd nov\u00fd fosiln\u00ed objev n\u00e1s nut\u00ed ustoupit a p\u0159ehodnotit to, co si mysl\u00edme, \u017ee v\u00edme, a proto m\u016f\u017ee b\u00fdt v\u011bda tak dynamick\u00e1.” <\/p>\n<\/blockquote>\n

Tento objev zd\u016fraz\u0148uje, kolik se toho o t\u011bchto ikonick\u00fdch pred\u00e1torech je\u0161t\u011b m\u016f\u017eeme dozv\u011bd\u011bt. Ka\u017ed\u00fd nov\u00fd objev d\u00e1le zdokonaluje na\u0161e ch\u00e1p\u00e1n\u00ed jejich v\u00fdvoje, distribuce a dominance nad prehistorick\u00fdm sv\u011btem.<\/p>\n","protected":false},"excerpt":{"rendered":"

V\u00fdjime\u010dn\u011b velk\u00fd T. rex femur objeven\u00fd v Nov\u00e9m Mexiku p\u0159episuje na\u0161e ch\u00e1p\u00e1n\u00ed t\u011bchto dominantn\u00edch pred\u00e1tor\u016f. Fosilie, holenn\u00ed kost dlouh\u00e1 t\u0159i stopy (asi 91 cm) a p\u011bt palc\u016f v pr\u016fm\u011bru (asi 13 cm), nazna\u010duje, \u017ee dinosaurus v\u00e1\u017e\u00edc\u00ed v\u00edce ne\u017e 4 536 kg se po Severn\u00ed Americe potuloval p\u0159ibli\u017en\u011b p\u0159ed 74 miliony let. Tento objev posouv\u00e1 \u010dasov\u00fd […]<\/p>\n","protected":false},"author":1,"featured_media":7493,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"tdm_status":"","tdm_grid_status":""},"categories":[1],"tags":[],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/www.schooler.org.ua\/cs\/wp-json\/wp\/v2\/posts\/7494"}],"collection":[{"href":"https:\/\/www.schooler.org.ua\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.schooler.org.ua\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.schooler.org.ua\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.schooler.org.ua\/cs\/wp-json\/wp\/v2\/comments?post=7494"}],"version-history":[{"count":0,"href":"https:\/\/www.schooler.org.ua\/cs\/wp-json\/wp\/v2\/posts\/7494\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.schooler.org.ua\/cs\/wp-json\/wp\/v2\/media\/7493"}],"wp:attachment":[{"href":"https:\/\/www.schooler.org.ua\/cs\/wp-json\/wp\/v2\/media?parent=7494"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.schooler.org.ua\/cs\/wp-json\/wp\/v2\/categories?post=7494"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.schooler.org.ua\/cs\/wp-json\/wp\/v2\/tags?post=7494"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}