V rozlehl\u00fdch oblastech Eurasie, p\u0159ed 20 a\u017e 35 miliony let, se potuloval mimo\u0159\u00e1dn\u00fd tvor: ob\u0159\u00ed nosoro\u017eec. Ned\u00e1vno zve\u0159ejn\u011bn\u00e1 studie v Communications Biology odhaluje objev nov\u00e9ho druhu tohoto kolos\u00e1ln\u00edho savce, Paraceratherium linxiaense, zalo\u017een\u00fd na \u010d\u00e1ste\u010dn\u011b zachovan\u00fdch poz\u016fstatc\u00edch vykopan\u00fdch v \u010d\u00ednsk\u00e9 p\u00e1nvi Linxia.<\/p>\n\n
Tento prehistorick\u00fd obr p\u0159evy\u0161oval sv\u00e9 sou\u010dasn\u00edky a dosahoval ohromuj\u00edc\u00ed v\u00fd\u0161ky 16 stop. Jeho masivn\u00ed lebka, m\u011b\u0159\u00edc\u00ed impozantn\u00edch 3,8 stopy na d\u00e9lku, nesla dlouh\u00fd, siln\u00fd krk a kr\u00e1tk\u00fd chobot podobn\u00fd dne\u0161n\u00edmu tap\u00edrovi. Hlubok\u00e1 nosn\u00ed dutina nazna\u010duje ostr\u00fd \u010dich.<\/p>\n\n
Ob\u0159\u00ed nosoro\u017eec zasti\u0148oval i nejv\u011bt\u0161\u00ed dne\u0161n\u00ed slony. Jeho robustn\u00ed t\u011blo se t\u00e1hlo p\u0159es 26 stop na d\u00e9lku a v\u00e1\u017eil mezi 11 a 20 metrick\u00fdmi tunami \u2013 ekvivalent t\u0159\u00ed a\u017e p\u011bti africk\u00fdch slon\u016f. Jeho siln\u00e9, \u017eirafovit\u00e9 nohy usnad\u0148ovaly obratn\u00fd pohyb navzdory jeho obrovsk\u00e9 velikosti.<\/p>\n\n
Fos\u00edlie ob\u0159\u00edch nosoro\u017ec\u016f byly nalezeny po cel\u00e9 Asii, od \u010c\u00edny po P\u00e1kist\u00e1n. Objev Paraceratherium linxiaense v \u010c\u00edn\u011b roz\u0161i\u0159uje na\u0161e ch\u00e1p\u00e1n\u00ed jejich geografick\u00e9ho roz\u0161\u00ed\u0159en\u00ed a vrh\u00e1 sv\u011btlo na jejich migra\u010dn\u00ed vzorce.<\/p>\n\n
Ob\u0159\u00ed nosoro\u017eci vykazovali pozoruhodnou p\u0159izp\u016fsobivost ke m\u011bn\u00edc\u00edm se podm\u00ednk\u00e1m prost\u0159ed\u00ed. V obdob\u00ed ran\u00e9ho oligoc\u00e9nu je such\u00e9 podm\u00ednky ve st\u0159edn\u00ed Asii p\u0159inutily migrovat na jih za zelen\u011bj\u0161\u00edmi pastvinami. Kdy\u017e se klima v pozdn\u00edm oligoc\u00e9nu op\u011bt zm\u011bnilo, odv\u00e1\u017eili se vydat zp\u011bt na sever.<\/p>\n\n
Flexibiln\u00ed krk Paraceratherium linxiaense, jak dokl\u00e1daj\u00ed fos\u00edlie obratl\u016f, mu umo\u017e\u0148oval dos\u00e1hnout na nejvy\u0161\u0161\u00ed listy strom\u016f, co\u017e roz\u0161i\u0159ovalo jeho mo\u017enosti ob\u017eivy. Jeho \u0161t\u00edhl\u00e9 nohy, podobn\u00e9 \u017eiraf\u00e1m, umo\u017e\u0148ovaly rychl\u00fd pohyb.<\/p>\n\n
Anal\u00fdza nov\u00e9ho druhu odhaluje \u00fazk\u00e9 p\u0159\u00edbuzenstv\u00ed s Paraceratherium bugtiense, ob\u0159\u00edm nosoro\u017ecem nalezen\u00fdm v P\u00e1kist\u00e1nu. To nazna\u010duje mo\u017enou migraci p\u0159es st\u0159edn\u00ed Asii, kter\u00e1 p\u0159isp\u011bla k diverzifikaci druh\u016f ob\u0159\u00edch nosoro\u017ec\u016f.<\/p>\n\n
P\u0159\u00edtomnost fos\u00edli\u00ed ob\u0159\u00edch nosoro\u017ec\u016f v Tibetu nazna\u010duje, \u017ee tato oblast nebyla v\u017edy vysoko polo\u017eenou n\u00e1horn\u00ed plo\u0161inou, jakou zn\u00e1me dnes. P\u0159ed miliony let pravd\u011bpodobn\u011b sest\u00e1vala z n\u00ed\u017ein, kter\u00e9 umo\u017e\u0148ovaly t\u011bmto obrovsk\u00fdm savc\u016fm je p\u0159ekon\u00e1vat.<\/p>\n\n
Prob\u00edhaj\u00edc\u00ed studie maj\u00ed za c\u00edl rekonstruovat svalov\u00fd syst\u00e9m Paraceratherium linxiaense pomoc\u00ed 3D sken\u016f fosiln\u00edch poz\u016fstatk\u016f. To poskytne p\u0159esn\u011bj\u0161\u00ed odhad jeho t\u011blesn\u00e9 hmotnosti a dal\u0161\u00ed poznatky o jeho adaptac\u00edch a chov\u00e1n\u00ed.<\/p>\n\n
Fos\u00edlie Paraceratherium linxiaense jsou v sou\u010dasnosti ulo\u017eeny v Hezhengsk\u00e9m paleozoologick\u00e9m muzeu v \u010c\u00edn\u011b. Slou\u017e\u00ed jako d\u016fkaz mimo\u0159\u00e1dn\u00e9 rozmanitosti \u017eivota, kter\u00e1 existovala v obdob\u00ed oligoc\u00e9nu, a poskytuj\u00ed cenn\u00e9 informace paleontolog\u016fm, kte\u0159\u00ed se sna\u017e\u00ed odhalit evolu\u010dn\u00ed historii ob\u0159\u00edch nosoro\u017ec\u016f.<\/p>","protected":false},"excerpt":{"rendered":"
Prehistorick\u00fd Ob\u0159\u00ed Nosoro\u017eec: Impozantn\u00ed Zv\u00ed\u0159e Oligoc\u00e9nu Objev Nov\u00e9ho Druhu V rozlehl\u00fdch oblastech Eurasie, p\u0159ed 20 a\u017e 35 miliony let, se potuloval mimo\u0159\u00e1dn\u00fd tvor: ob\u0159\u00ed nosoro\u017eec. Ned\u00e1vno zve\u0159ejn\u011bn\u00e1 studie v Communications…<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[138],"tags":[1569,21017,137,21018,21016],"class_list":["post-15815","post","type-post","status-publish","format-standard","hentry","category-paleontology","tag-fossil-discovery","tag-oligocene-era","tag-paleontology","tag-paraceratherium-linxiaense","tag-prehistoric-giant-rhino"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/15815","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\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/comments?post=15815"}],"version-history":[{"count":1,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/15815\/revisions"}],"predecessor-version":[{"id":15816,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/15815\/revisions\/15816"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/media?parent=15815"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/categories?post=15815"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/tags?post=15815"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}