V roce 2004 u\u010dinil mlad\u00fd chlapec jm\u00e9nem Diego Su\u00e1rez mimo\u0159\u00e1dn\u00fd objev b\u011bhem t\u00fary v ji\u017en\u00edm Chile. Mezi kostmi, kter\u00e9 nasb\u00edral, byly i kosti dosud nezn\u00e1m\u00e9ho dinosaura. O v\u00edce ne\u017e desetilet\u00ed pozd\u011bji paleontologov\u00e9 dinosaura pojmenovali Chilesaurus diegosuarezi na po\u010dest Diega a regionu, kde byl nalezen.<\/p>\n\n
Chilesaurus je teropod, skupina dinosaur\u016f, o kter\u00e9 se tradi\u010dn\u011b p\u0159edpokl\u00e1dalo, \u017ee jsou v\u00fdhradn\u011b maso\u017erav\u00ed. S tupou, zaoblenou lebkou a kr\u00e1tk\u00fdmi, listovit\u00fdmi zuby se v\u0161ak Chilesaurus vymyk\u00e1 jako striktn\u00ed b\u00fdlo\u017eravec. Tento objev zpochyb\u0148uje na\u0161e p\u0159edchoz\u00ed ch\u00e1p\u00e1n\u00ed evoluce teropod\u016f a nazna\u010duje, \u017ee b\u00fdlo\u017eravost se v t\u00e9to skupin\u011b vyvinula n\u011bkolikr\u00e1t.<\/p>\n\n
Chilesaurus nen\u00ed prvn\u00edm zn\u00e1m\u00fdm b\u00fdlo\u017erav\u00fdm teropodem. V roce 2009 paleontologov\u00e9 popsali Limusaura, 150 milion\u016f let star\u00e9ho teropoda velikosti krocan\u00edho s zob\u00e1kem p\u0159izp\u016fsoben\u00fdm klov\u00e1n\u00ed do list\u016f kapradin. Spolu s Chilesaurusem tyto objevy nazna\u010duj\u00ed, \u017ee b\u00fdlo\u017eravost mezi teropody se mohla objevit d\u0159\u00edve, ne\u017e se d\u0159\u00edve v\u011b\u0159ilo.<\/p>\n\n
V ekosyst\u00e9mu, kde byl Chilesaurus nalezen, jsou jeho kosti hojn\u011bj\u0161\u00ed ne\u017e kosti jak\u00e9hokoli jin\u00e9ho tvora. To nazna\u010duje, \u017ee Chilesaurus hr\u00e1l v\u00fdznamnou ekologickou roli. Na rozd\u00edl od v\u011bt\u0161iny prost\u0159ed\u00ed stejn\u00e9ho st\u00e1\u0159\u00ed, kde dominovali zobat\u00ed ornitischi b\u00fdlo\u017eravci, Chilesaurus prosperoval jako teropod v rostlino\u017erav\u00e9 nika.<\/p>\n\n
Objev Chilesaura m\u00e1 d\u016fsledky pro na\u0161e ch\u00e1p\u00e1n\u00ed evoluce teropod\u016f. Pokud je navrhovan\u00e9 um\u00edst\u011bn\u00ed Chilesaura v rodokmenu teropod\u016f spr\u00e1vn\u00e9, nazna\u010duje to, \u017ee alespo\u0148 t\u0159i a mo\u017en\u00e1 i sedm lini\u00ed teropod\u016f se nez\u00e1visle p\u0159izp\u016fsobilo rostlinn\u00e9 strav\u011b. Jedna z t\u011bchto lini\u00ed m\u016f\u017ee b\u00fdt dokonce spojena s p\u016fvodem pt\u00e1k\u016f, jedin\u00e9 p\u0159e\u017e\u00edvaj\u00edc\u00ed skupiny teropodn\u00edch dinosaur\u016f.<\/p>\n\n
D\u016fvody, pro\u010d se n\u011bkte\u0159\u00ed teropodi vyvinuli v b\u00fdlo\u017eravce, nejsou zcela pochopeny. Jednou z mo\u017enost\u00ed je, \u017ee zm\u011bny v prost\u0159ed\u00ed vytvo\u0159ily nov\u00e9 p\u0159\u00edle\u017eitosti pro rostlino\u017erav\u00e9 dinosaury, aby prosperovali. Jak konkurence o maso rostla, n\u011bkte\u0159\u00ed teropodi se mohli p\u0159eorientovat na vegetari\u00e1nskou stravu, aby se vyhnuli konkurenci a vyu\u017eili nevyu\u017eit\u00e9 zdroje.<\/p>\n\n
Chilesaurus je unik\u00e1tn\u00ed a z\u00e1hadn\u00fd dinosaurus, kter\u00fd zpochyb\u0148uje na\u0161e p\u0159edstavy o teropodech a osv\u011btluje evolu\u010dn\u00ed cesty b\u00fdlo\u017eravosti v t\u00e9to skupin\u011b dinosaur\u016f. Jeho objev je p\u0159ipom\u00ednkou pozoruhodn\u00e9 rozmanitosti a p\u0159izp\u016fsobivosti \u017eivota na Zemi a prob\u00edhaj\u00edc\u00edho procesu v\u011bdeck\u00e9ho objevov\u00e1n\u00ed, kter\u00fd nad\u00e1le prohlubuje na\u0161e ch\u00e1p\u00e1n\u00ed p\u0159\u00edrodn\u00edho sv\u011bta.<\/p>","protected":false},"excerpt":{"rendered":"
Nov\u00fd objev: Chilesaurus, rostlino\u017erav\u00fd dinosaurus Objev a popis V roce 2004 u\u010dinil mlad\u00fd chlapec jm\u00e9nem Diego Su\u00e1rez mimo\u0159\u00e1dn\u00fd objev b\u011bhem t\u00fary v ji\u017en\u00edm Chile. Mezi kostmi, kter\u00e9 nasb\u00edral, byly i…<\/p>\n","protected":false},"author":2,"featured_media":25351,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[138],"tags":[21001,136,21003,137,3920,21002],"class_list":["post-15803","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-paleontology","tag-chilesaurus","tag-evolution","tag-herbivory","tag-paleontology","tag-plant-eating-dinosaurs","tag-theropods"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/15803","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=15803"}],"version-history":[{"count":2,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/15803\/revisions"}],"predecessor-version":[{"id":25352,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/15803\/revisions\/25352"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/media\/25351"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/media?parent=15803"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/categories?post=15803"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/tags?post=15803"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}