{"id":3269,"date":"2025-12-22T17:51:17","date_gmt":"2025-12-22T17:51:17","guid":{"rendered":"https:\/\/www.lifescienceart.com\/?p=3269"},"modified":"2025-12-22T17:51:17","modified_gmt":"2025-12-22T17:51:17","slug":"debate-over-identity-of-australian-tyrant-dinosaur","status":"publish","type":"post","link":"https:\/\/www.lifescienceart.com\/cs\/science\/paleontology\/debate-over-identity-of-australian-tyrant-dinosaur\/","title":{"rendered":"Australsk\u00fd \u201atyrannosaurus\u2018: senzace nebo omyl? V\u011bdci se p\u0159ou o fosilii, kter\u00e1 m\u011bn\u00ed mapu dinosaur\u016f"},"content":{"rendered":"

Debata o toto\u017enosti australsk\u00e9ho tyranosaura<\/h2>\n\n

Objev a popis<\/h2>\n\n

V b\u0159eznu 2010 t\u00fdm paleontolog\u016f veden\u00fd Rogerem Bensonem ozn\u00e1mil objev \u010d\u00e1sti ky\u010deln\u00ed kosti tyrannosauroidn\u00edho dinosaura z Austr\u00e1lie. Tento objev p\u0159edstavoval prvn\u00ed d\u016fkaz existence t\u00e9to skupiny dinosaur\u016f na ji\u017en\u00edm kontinentu.<\/p>\n\n

Ky\u010deln\u00ed kost, zn\u00e1m\u00e1 jako pubis, je charakteristick\u00fdm znakem tyranosaur\u016f, zejm\u00e9na t\u011bch posledn\u00edch, kte\u0159\u00ed se vyvinuli. Australsk\u00fd exempl\u00e1\u0159 vykazoval n\u011bkolik znak\u016f nazna\u010duj\u00edc\u00edch, \u017ee pat\u0159\u00ed tyranosaurovi, v\u010detn\u011b robustn\u00edho tvaru a sm\u011brem dol\u016f orientovan\u00e9 p\u0159edn\u00ed \u010d\u00e1sti.<\/p>\n\n

Kontroverze<\/h2>\n\n

V ned\u00e1vn\u00e9m koment\u00e1\u0159i publikovan\u00e9m v \u010dasopise Science v\u0161ak Matthew Herne, Jay Nair a Steven Salisbury tvrdili, \u017ee d\u016fkazy pro v\u00fdskyt tyranosaura v Austr\u00e1lii nejsou tak siln\u00e9, jak navrhl Benson.<\/p>\n\n

Herne a jeho kolegov\u00e9 pouk\u00e1zali na to, \u017ee anatomick\u00e9 detaily, kter\u00e9 byly p\u016fvodn\u011b pou\u017eity k ur\u010den\u00ed kost\u00ed jako tyranosaura, se vyskytuj\u00ed i u jin\u00fdch teropod\u016f, skupiny maso\u017erav\u00fdch dinosaur\u016f, kter\u00e1 zahrnuje i tyranosaurus. Navrhli, \u017ee australsk\u00e9 kosti by mohly poch\u00e1zet z jednoho z mnoha dal\u0161\u00edch druh\u016f teropodn\u00edch dinosaur\u016f ji\u017e zn\u00e1m\u00fdch z Austr\u00e1lie, jako jsou coelurosau\u0159i nebo karcharodontosau\u0159i.<\/p>\n\n

Odpov\u011b\u010f<\/h2>\n\n

Benson a ostatn\u00ed auto\u0159i p\u016fvodn\u00edho \u010dl\u00e1nku nesouhlasili s interpretac\u00ed Herneho. V odpov\u011bdi publikovan\u00e9 spole\u010dn\u011b s koment\u00e1\u0159em udr\u017eeli, \u017ee zvl\u00e1\u0161tn\u00ed rys ky\u010deln\u00ed kosti, zn\u00e1m\u00fd jako pubick\u00fd tuberkul, je nejpodobn\u011bj\u0161\u00ed stejn\u00e9mu znaku u tyranosaur\u016f.<\/p>\n\n

A\u010dkoli je pubick\u00fd tuberkul po\u0161kozen, Benson a jeho kolegov\u00e9 tvrdili, \u017ee orientace chyb\u011bj\u00edc\u00ed \u010d\u00e1sti m\u016f\u017ee b\u00fdt st\u00e1le ur\u010dena. V\u011b\u0159\u00ed, \u017ee kdyby kost byla kompletn\u00ed, uk\u00e1zala by stav podobn\u00fd tyrannosauroidn\u00edm dinosaur\u016fm.<\/p>\n\n

Geografick\u00e9 implikace<\/h2>\n\n

Objev mo\u017en\u00e9ho tyranosaura v Austr\u00e1lii m\u00e1 d\u016fsledky pro na\u0161e ch\u00e1p\u00e1n\u00ed rozmanitosti dinosaur\u016f a jejich geografick\u00e9ho roz\u0161\u00ed\u0159en\u00ed.<\/p>\n\n

Po desetilet\u00ed paleontologov\u00e9 v\u011b\u0159ili, \u017ee dinosaury lze rozd\u011blit do dvou hlavn\u00edch skupin: severn\u00ed (laurasijsk\u00e9) a ji\u017en\u00ed (gondwansk\u00e9). Ned\u00e1vn\u00e9 objevy v\u0161ak uk\u00e1zaly, \u017ee toto rozd\u011blen\u00ed nen\u00ed tak jednoduch\u00e9, jak se kdysi myslelo.<\/p>\n\n

Nejbli\u017e\u0161\u00edm p\u0159\u00edbuzn\u00fdm australsk\u00e9ho teropoda Australoventaora je nap\u0159\u00edklad Fukuiraptor z Japonska. Tento objev nazna\u010duje, \u017ee n\u011bkter\u00e9 skupiny dinosaur\u016f byly schopny p\u0159ekonat to, co byly d\u0159\u00edve pova\u017eov\u00e1ny za geografick\u00e9 bari\u00e9ry.<\/p>\n\n

Prob\u00edhaj\u00edc\u00ed debata<\/h2>\n\n

Debata o toto\u017enosti australsk\u00e9ho tyranosaura st\u00e1le pokra\u010duje. Dv\u011b skupiny v\u00fdzkumn\u00edk\u016f se pod\u00edvaly na stejn\u00e9 fos\u00edlie a dosp\u011bly k velmi odli\u0161n\u00fdm z\u00e1v\u011br\u016fm. Pro definitivn\u00ed ur\u010den\u00ed, zda kosti pat\u0159\u00ed tyranosaurovi nebo jin\u00e9mu typu teropoda, budou zapot\u0159eb\u00ed dal\u0161\u00ed fos\u00edlie.<\/p>\n\n

Dodate\u010dn\u00fd v\u00fdzkum<\/h2>\n\n

Paleontologov\u00e9 netrp\u011bliv\u011b o\u010dek\u00e1vaj\u00ed ozn\u00e1men\u00ed dal\u0161\u00edch poz\u016fstatk\u016f tohoto sporn\u00e9ho australsk\u00e9ho dinosaura. Dodate\u010dn\u00e9 fos\u00edlie by mohly poskytnout definitivn\u011bj\u0161\u00ed d\u016fkazy a pomoci vy\u0159e\u0161it debatu o jeho toto\u017enosti.<\/p>\n\n

Mezit\u00edm objev mo\u017en\u00e9ho tyranosaura v Austr\u00e1lii vzbudil mezi paleontology vzru\u0161en\u00ed a debatu. P\u0159ipom\u00edn\u00e1 n\u00e1m, \u017ee na\u0161e ch\u00e1p\u00e1n\u00ed rozmanitosti a roz\u0161\u00ed\u0159en\u00ed dinosaur\u016f se neust\u00e1le vyv\u00edj\u00ed s ka\u017ed\u00fdm nov\u00fdm objevem.<\/p>","protected":false},"excerpt":{"rendered":"

Debata o toto\u017enosti australsk\u00e9ho tyranosaura Objev a popis V b\u0159eznu 2010 t\u00fdm paleontolog\u016f veden\u00fd Rogerem Bensonem ozn\u00e1mil objev \u010d\u00e1sti ky\u010deln\u00ed kosti tyrannosauroidn\u00edho dinosaura z Austr\u00e1lie. Tento objev p\u0159edstavoval prvn\u00ed d\u016fkaz…<\/p>\n","protected":false},"author":2,"featured_media":25167,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[138],"tags":[1341,6326,2704,1532,137,5677,6325,97],"class_list":["post-3269","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-paleontology","tag-australia","tag-debate","tag-dinosaur","tag-discovery","tag-paleontology","tag-theropod","tag-tyrannosaur","tag-science"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/3269","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/comments?post=3269"}],"version-history":[{"count":2,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/3269\/revisions"}],"predecessor-version":[{"id":25168,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/3269\/revisions\/25168"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/media\/25167"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/media?parent=3269"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/categories?post=3269"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/tags?post=3269"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}