[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.calvera.cz\/jursky-postrach-jmenem-allosaurus-zrejme-nebyl-dravec-ale-mrchozrout\/#Article","mainEntityOfPage":"https:\/\/www.calvera.cz\/jursky-postrach-jmenem-allosaurus-zrejme-nebyl-dravec-ale-mrchozrout\/","headline":"Jursk\u00fd postrach jm\u00e9nem Allosaurus z\u0159ejm\u011b nebyl dravec ale mrcho\u017erout","name":"Jursk\u00fd postrach jm\u00e9nem Allosaurus z\u0159ejm\u011b nebyl dravec ale mrcho\u017erout","description":"Nov\u00e1 zji\u0161t\u011bn\u00ed o zp\u016fsobu \u017eivota velk\u00e9ho maso\u017erav\u00e9ho dinosaura, kter\u00fd \u017eil v obdob\u00ed svrchn\u00ed jury, tedy zhruba p\u0159ed 150 milion\u016f.","datePublished":"2021-09-02","dateModified":"2023-05-01","author":{"@type":"Person","@id":"https:\/\/www.calvera.cz\/author\/devene\/#Person","name":"devene","url":"https:\/\/www.calvera.cz\/author\/devene\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/ac70c9e5ac34d1687bd81eed3e0a5127e2920111fdfe832b53d740bc4b86c4fd?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/ac70c9e5ac34d1687bd81eed3e0a5127e2920111fdfe832b53d740bc4b86c4fd?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"calvera.cz","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/www.calvera.cz\/wp-content\/uploads\/kostra%20allosaura.jpg","url":"https:\/\/www.calvera.cz\/wp-content\/uploads\/kostra%20allosaura.jpg","height":0,"width":0},"url":"https:\/\/www.calvera.cz\/jursky-postrach-jmenem-allosaurus-zrejme-nebyl-dravec-ale-mrchozrout\/","about":["V\u011bda"],"wordCount":433,"articleBody":"Nov\u00e1 zji\u0161t\u011bn\u00ed o zp\u016fsobu \u017eivota velk\u00e9ho maso\u017erav\u00e9ho dinosaura, kter\u00fd \u017eil v obdob\u00ed svrchn\u00ed jury, tedy zhruba p\u0159ed 150 milion\u016f let, p\u0159inesli v\u011bdci z Portlandsk\u00e9 st\u00e1tn\u00ed univerzity Cameron Pahl a Luis Ruedas. Ti tvrd\u00ed, \u017ee Allosaurus, kter\u00fd byl dlouho pova\u017eov\u00e1n za pred\u00e1tora par excellence, nejsp\u00ed\u0161 z\u00edsk\u00e1val v\u011bt\u0161inu sv\u00e9ho kalorick\u00e9ho p\u0159\u00edjmu z t\u011bla mr\u0161in obrovsk\u00fdch sauropodn\u00edch b\u00fdlo\u017eravc\u016f.Masa bylo dost i bez lovu\u201eTato nov\u00e1 perspektiva m\u016f\u017ee p\u0159evr\u00e1tit naruby 150 let star\u00e9 p\u0159esv\u011bd\u010den\u00ed o \u017eivot\u011b Allosaur\u016f,\u201c uvedl ke sv\u00e9mu objevu Cameron Pahl.On a jeho v\u00fdzkumn\u00fd t\u00fdm vych\u00e1zeli se svou teori\u00ed z faktu, \u017ee tento ladn\u00fd maso\u017eravec, kter\u00fd dosahoval d\u00e9lky odhadem a\u017e 12 metr\u016f a v\u00e1\u017eil n\u011bco kolem \u010dty\u0159 tun, sd\u00edlel sv\u016fj \u017eivotn\u00ed prostor s nejv\u011bt\u0161\u00edmi b\u00fdlo\u017erav\u00fdmi dinosau\u0159\u00edmi giganty, kte\u0159\u00ed kdy spat\u0159ili sv\u011btlo sv\u011bta, jako byl zn\u00e1m\u00fd Brontosaurus, Apatosaurus, Diplodocus, Brachiosaurus \u010di dokonce Supersaurus. Ti m\u011b\u0159ili i v\u00edce ne\u017e t\u0159icet metr\u016f a v\u00e1\u017eili v\u00edce ne\u017e 40 tun.Jestli\u017ee tito ob\u0159i zem\u0159eli z p\u0159irozen\u00fdch p\u0159\u00ed\u010din, jako byly nemoci, hlad nebo vy\u010derp\u00e1n\u00ed, jak to b\u00fdv\u00e1 typick\u00e9 pro populace soudob\u00fdch b\u00fdlo\u017eravc\u016f, jejich t\u011bla poskytovala dostatek potravy k tomu, aby Allosaury udr\u017eela p\u0159i \u017eivot\u011b i bez nutnosti drav\u00e9ho chov\u00e1n\u00ed.Prozradil ho chrup a vid\u011bn\u00edK p\u0159ijet\u00ed teorie o mrcho\u017erav\u00e9m Allosaurovi vedlo v\u011bdce hned n\u011bkolik faktor\u016f. Zkoumali vztah mezi po\u010dtem mr\u0161in objeven\u00fdch na Morrisonov\u011b souvrstv\u00ed z obdob\u00ed svrchn\u00ed jury na \u00fazem\u00ed st\u00e1t\u016f Colorado a Wyoming v USA. Objem masa z mrtv\u00fdch t\u011bl pak porovnali s energetickou n\u00e1ro\u010dnost\u00ed allosau\u0159\u00edho t\u011bla. Definitivn\u00ed argumenty v\u0161ak poskytlo zkoum\u00e1n\u00ed morfologick\u00fdch vlastnost\u00ed jeho lebky.Zjistilo se, \u017ee Allosau\u0159i nedisponovali binokul\u00e1rn\u00edm vid\u011bn\u00edm, jako je tomu u jin\u00fdch drav\u00fdch dinosaur\u016f i modern\u00edch drav\u00fdch zv\u00ed\u0159at. Mimoto m\u011bli tak\u00e9 relativn\u011b k\u0159ehkou lebku a tak\u00e9 chrup, kter\u00fd jako prvn\u00ed zpochyb\u0148oval verzi o Allosaurovi \u2013 dravci.I p\u0159es zjevn\u00e9 podobnosti s T. Rexem, jako je ch\u016fze po dvou noh\u00e1ch, masivn\u00ed lebka s \u010delistmi pln\u00fdmi vroubkovan\u00fdch zub\u016f a ob\u0159\u00ed t\u011blesn\u00e9 rozm\u011bry, m\u011bl Allosaurus do stra\u0161liv\u00e9ho pred\u00e1tora daleko. Sp\u00ed\u0161 byl podobn\u00fd dne\u0161n\u00edm sup\u016fm a plnil ekologickou roli mrcho\u017erouta.                                                                                                                                                                                                                                                                                                                                                                                                "},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Jursk\u00fd postrach jm\u00e9nem Allosaurus z\u0159ejm\u011b nebyl dravec ale mrcho\u017erout","item":"https:\/\/www.calvera.cz\/jursky-postrach-jmenem-allosaurus-zrejme-nebyl-dravec-ale-mrchozrout\/#breadcrumbitem"}]}]