{"id":2945,"date":"2022-07-30T16:02:58","date_gmt":"2022-07-30T16:02:58","guid":{"rendered":"https:\/\/www.lifescienceart.com\/?p=2945"},"modified":"2022-07-30T16:02:58","modified_gmt":"2022-07-30T16:02:58","slug":"newly-discovered-marine-reptile-with-serrated-teeth","status":"publish","type":"post","link":"https:\/\/www.lifescienceart.com\/cs\/science\/paleontology\/newly-discovered-marine-reptile-with-serrated-teeth\/","title":{"rendered":"Nov\u011b objeven\u00fd mo\u0159sk\u00fd plaz m\u011bl zoubkovan\u00e9 zuby"},"content":{"rendered":"<h2 class=\"wp-block-heading\"><strong>Nov\u011b objeven\u00fd mo\u0159sk\u00fd plaz m\u011bl zoubkovan\u00e9 zuby<\/strong><\/h2>\n\n<h2 class=\"wp-block-heading\">Objev a identifikace<\/h2>\n\n<p>T\u011b\u017ea\u0159i fosf\u00e1t\u016f v Maroku u\u010dinili pozoruhodn\u00fd objev, kdy\u017e odhalili poz\u016fstatky nov\u00e9ho druhu mosasaura, mo\u0159sk\u00e9ho plaza, kter\u00fd \u017eil p\u0159ibli\u017en\u011b p\u0159ed 66 miliony lety. V\u011bdci byli ohromeni jedine\u010dn\u00fdm chrupem tvora, kter\u00fd ho odli\u0161uje od v\u0161ech ostatn\u00edch zn\u00e1m\u00fdch plaz\u016f. Mosasaurus, kter\u00fd dostal jm\u00e9no Xenodens calminechari, co\u017e znamen\u00e1 \u201epodivn\u00fd zub\u201c, m\u011bl zoubkovan\u00e9 zuby podobn\u00e9 \u017eralok\u016fm.<\/p>\n\n<h2 class=\"wp-block-heading\">V\u00fdjime\u010dn\u00fd chrup<\/h2>\n\n<p>Zuby Xenodensa calminechariho se nepodobaly ni\u010demu, co bylo d\u0159\u00edve u plaz\u016f pozorov\u00e1no. Byly ostr\u00e9 jako b\u0159itva a pilovit\u00e9, schopn\u00e9 snadno pro\u0159\u00edznout maso. Tento neobvykl\u00fd chrup nazna\u010duje specializovanou strategii krmen\u00ed, kter\u00e1 se v\u00fdrazn\u011b li\u0161ila od ostatn\u00edch druh\u016f mosasaur\u016f.<\/p>\n\n<h2 class=\"wp-block-heading\">Ekologick\u00e9 d\u016fsledky<\/h2>\n\n<p>Objev Xenodensa calminechariho vrh\u00e1 sv\u011btlo na ekologickou rozmanitost starov\u011bk\u00fdch mo\u0159sk\u00fdch ekosyst\u00e9m\u016f. Mosasau\u0159i vykazovali \u0161irokou \u0161k\u00e1lu potravn\u00edch n\u00e1vyk\u016f a zoubkovan\u00e9 zuby X. calminechariho nazna\u010duj\u00ed, \u017ee mohl vyplnit jedine\u010dnou niku v tomto rozmanit\u00e9m ekosyst\u00e9mu.<\/p>\n\n<h2 class=\"wp-block-heading\">Evolu\u010dn\u00ed v\u00fdznam<\/h2>\n\n<p>Vzhled Xenodensa calminechariho t\u011bsn\u011b p\u0159ed vyhynut\u00edm dinosaur\u016f poskytuje poznatky o evolu\u010dn\u00ed trajektorii mosasaur\u016f. Jeho neobvykl\u00fd chrup nazna\u010duje, \u017ee mosasau\u0159i st\u00e1le experimentovali s nov\u00fdmi mechanismy krmen\u00ed a morfologick\u00fdmi adaptacemi p\u0159ed sv\u00fdm kone\u010dn\u00fdm z\u00e1nikem.<\/p>\n\n<h2 class=\"wp-block-heading\">Modern\u00ed analogy<\/h2>\n\n<p>Nejbli\u017e\u0161\u00ed modern\u00ed analogi\u00ed k jedine\u010dn\u00e9mu chrupu Xenodensa calminechariho je \u017eralok pestr\u00fd. \u017draloci pest\u0159\u00ed maj\u00ed zoubkovan\u00e9 zuby, kter\u00e9 jim umo\u017e\u0148uj\u00ed lovit z velk\u00fdch mr\u0161in a kr\u00e1jet men\u0161\u00ed ko\u0159ist. To nazna\u010duje, \u017ee X. calminechari mohl pou\u017e\u00edvat podobn\u00e9 strategie krmen\u00ed.<\/p>\n\n<h2 class=\"wp-block-heading\">Paleoekologick\u00fd kontext<\/h2>\n\n<p>Xenodens calminechari ob\u00fdval tepl\u00e1 mo\u0159e severn\u00ed Afriky, kter\u00e1 byla v pozdn\u00edm k\u0159\u00eddov\u00e9m obdob\u00ed pln\u00e1 pred\u00e1tor\u016f. Obrovsk\u00e9 zuby mosasaura mu mohly poskytnout konkuren\u010dn\u00ed v\u00fdhodu v tomto nebezpe\u010dn\u00e9m prost\u0159ed\u00ed.<\/p>\n\n<h2 class=\"wp-block-heading\">D\u016fsledky pro dynamiku ekosyst\u00e9mu<\/h2>\n\n<p>Objev Xenodensa calminechariho zd\u016fraz\u0148uje slo\u017eitou s\u00ed\u0165 interakc\u00ed ve starov\u011bk\u00fdch mo\u0159sk\u00fdch ekosyst\u00e9mech. Jeho jedine\u010dn\u00fd chrup nazna\u010duje, \u017ee hr\u00e1l specifickou roli v potravn\u00edm \u0159et\u011bzci a potenci\u00e1ln\u011b ovliv\u0148oval popula\u010dn\u00ed dynamiku jin\u00fdch druh\u016f.<\/p>\n\n<h2 class=\"wp-block-heading\">Prob\u00edhaj\u00edc\u00ed v\u00fdzkum<\/h2>\n\n<p>V\u011bdci pokra\u010duj\u00ed ve studiu Xenodensa calminechariho a jeho d\u016fsledk\u016f pro porozum\u011bn\u00ed evoluci a ekologii mosasaur\u016f. Dal\u0161\u00ed v\u00fdzkum m\u016f\u017ee odhalit dal\u0161\u00ed poznatky o potravn\u00edm chov\u00e1n\u00ed, preferenc\u00edch stanovi\u0161\u0165 a interakc\u00edch tohoto z\u00e1hadn\u00e9ho mo\u0159sk\u00e9ho plaza.<\/p>\n\n<h2 class=\"wp-block-heading\">Dal\u0161\u00ed informace<\/h2>\n\n<ul class=\"wp-block-list\">\n<li>Mosasau\u0159i byli skupinou mo\u0159sk\u00fdch plaz\u016f, kte\u0159\u00ed \u017eili v k\u0159\u00eddov\u00e9m obdob\u00ed, p\u0159ibli\u017en\u011b p\u0159ed 120 a\u017e 66 miliony lety.<\/li>\n<li>Vykazovali \u0161irokou \u0161k\u00e1lu velikost\u00ed a potravn\u00edch n\u00e1vyk\u016f, od mal\u00fdch druh\u016f \u017eiv\u00edc\u00edch se m\u011bkk\u00fd\u0161i a\u017e po ob\u0159\u00ed pred\u00e1tory, kte\u0159\u00ed soupe\u0159ili s modern\u00edmi vorvani.<\/li>\n<li>Vyhynut\u00ed dinosaur\u016f na konci k\u0159\u00eddov\u00e9ho obdob\u00ed znamenalo tak\u00e9 z\u00e1nik mosasaur\u016f.<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Nov\u011b objeven\u00fd mo\u0159sk\u00fd plaz m\u011bl zoubkovan\u00e9 zuby Objev a identifikace T\u011b\u017ea\u0159i fosf\u00e1t\u016f v Maroku u\u010dinili pozoruhodn\u00fd objev, kdy\u017e odhalili poz\u016fstatky nov\u00e9ho druhu mosasaura, mo\u0159sk\u00e9ho plaza, kter\u00fd \u017eil p\u0159ibli\u017en\u011b p\u0159ed 66&hellip;<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[138],"tags":[5514,5772,5771,137,5770,5774,5773],"class_list":["post-2945","post","type-post","status-publish","format-standard","hentry","category-paleontology","tag-cretaceous-period","tag-marine-reptile","tag-mosasaur","tag-paleontology","tag-xenodens-calminechari","tag-shark-like-teeth","tag-serrated-teeth"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/2945","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=2945"}],"version-history":[{"count":1,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/2945\/revisions"}],"predecessor-version":[{"id":2946,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/2945\/revisions\/2946"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/media?parent=2945"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/categories?post=2945"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/tags?post=2945"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}