{"id":15313,"date":"2021-01-15T17:14:49","date_gmt":"2021-01-15T17:14:49","guid":{"rendered":"https:\/\/www.lifescienceart.com\/?p=15313"},"modified":"2021-01-15T17:14:49","modified_gmt":"2021-01-15T17:14:49","slug":"ancient-elephant-bones-unearthed-in-los-angeles-subway-excavation","status":"publish","type":"post","link":"https:\/\/www.lifescienceart.com\/cs\/science\/paleontology\/ancient-elephant-bones-unearthed-in-los-angeles-subway-excavation\/","title":{"rendered":"Objev zkamen\u011blin prav\u011bk\u00e9ho slona p\u0159i v\u00fdkopu metra v Los Angeles"},"content":{"rendered":"

Objev zkamen\u011blin prav\u011bk\u00e9ho slona p\u0159i v\u00fdkopu metra v Los Angeles<\/h2>\n\n

Objev a v\u00fdznam<\/h2>\n\n

P\u0159i v\u00fdstavb\u011b stanice Wilshire\/La Brea metra v Los Angeles narazili d\u011bln\u00edci na \u00falomky prav\u011bk\u00e9ho slona, co\u017e je objev, kter\u00fd vrh\u00e1 sv\u011btlo na prav\u011bkou minulost oblasti. P\u0159\u00edtomnost t\u011bchto zkamen\u011blin nen\u00ed p\u0159ekvapiv\u00e1, vzhledem k nedalek\u00fdm La Brea dehtov\u00e9 j\u00e1my, kter\u00e9 jsou zn\u00e1m\u00e9 svou konzervac\u00ed \u010detn\u00fdch prav\u011bk\u00fdch tvor\u016f.<\/p>\n\n

Identifikace a anal\u00fdza zkamen\u011blin<\/h2>\n\n

Po\u010d\u00e1te\u010dn\u00ed objev sest\u00e1val ze sady zub\u016f pat\u0159\u00edc\u00edch k dosp\u011bl\u00e9mu mastodontovi. N\u00e1sledn\u00fd v\u00fdkop odhalil \u010d\u00e1ste\u010dnou lebku s kly. P\u0159edb\u011b\u017en\u00e1 anal\u00fdza nazna\u010duje, \u017ee slon \u017eil zhruba p\u0159ed 10 000 lety b\u011bhem posledn\u00ed doby ledov\u00e9. St\u00e1le je v\u0161ak nejist\u00e9, zda lebka a kly pat\u0159\u00ed k mastodontovi nebo mlad\u00e9mu mamutovi. Dal\u0161\u00ed anal\u00fdza zub\u016f a rys\u016f lebky ur\u010d\u00ed druh.<\/p>\n\n

Zachov\u00e1n\u00ed a odstran\u011bn\u00ed<\/h2>\n\n

Po objevu byly stavebn\u00ed pr\u00e1ce v oblasti okam\u017eit\u011b zastaveny, aby bylo umo\u017en\u011bno zachov\u00e1n\u00ed a odstran\u011bn\u00ed zkamen\u011blin. \u010c\u00e1st klu a lebka byly pokryty s\u00e1drou, aby byla zachov\u00e1na jejich integrita b\u011bhem transportu do laborato\u0159e k dal\u0161\u00edmu studiu.<\/p>\n\n

Mamuti vs. mastodonti<\/h2>\n\n

Mamuti a mastodonti, vzd\u00e1len\u00ed bratranci modern\u00edch slon\u016f, vykazuj\u00ed odli\u0161n\u00e9 charakteristiky. Mamuti byli v\u011bt\u0161\u00ed s vysok\u00fdmi, r\u00fdhovan\u00fdmi zuby p\u0159izp\u016fsoben\u00fdmi pro pasen\u00ed se na tvrd\u00fdch travn\u00edch porostech pl\u00e1n\u00ed. Mastodonti naopak d\u00e1vali p\u0159ednost zalesn\u011bn\u00e9mu prost\u0159ed\u00ed a konzumovali ovoce a listy. Oba druhy vyhynuly zhruba p\u0159ed 10 000 lety.<\/p>\n\n

Historick\u00fd kontext<\/h2>\n\n

Tento posledn\u00ed objev p\u0159edstavuje prvn\u00ed n\u00e1lez zkamen\u011blin b\u011bhem projektu roz\u0161\u00ed\u0159en\u00ed metra. Nen\u00ed to v\u0161ak ojedin\u011bl\u00fd p\u0159\u00edpad. P\u0159i v\u00fdstavb\u011b \u010derven\u00e9 linky v 80. letech 20. stolet\u00ed vykopali d\u011bln\u00edci tis\u00edce fosiln\u00edch exempl\u00e1\u0159\u016f. Financov\u00e1n\u00ed vyzvednut\u00ed zkamen\u011blin bylo za\u010dlen\u011bno do sou\u010dasn\u00e9ho rozpo\u010dtu, co\u017e dokl\u00e1d\u00e1 historick\u00fd v\u00fdznam t\u011bchto n\u00e1lez\u016f.<\/p>\n\n

Budouc\u00ed objevy<\/h2>\n\n

Odborn\u00edci p\u0159edpokl\u00e1daj\u00ed, \u017ee s pokra\u010dov\u00e1n\u00edm roz\u0161i\u0159ov\u00e1n\u00ed metra budou u\u010din\u011bny dal\u0161\u00ed objevy zkamen\u011blin. Bohat\u00e1 paleontologick\u00e1 historie oblasti nazna\u010duje, \u017ee v\u00fdkop m\u016f\u017ee p\u0159in\u00e9st dal\u0161\u00ed d\u016fkazy o prav\u011bk\u00e9m \u017eivot\u011b v Los Angeles.<\/p>\n\n

Ve\u0159ejn\u00e1 doprava a prav\u011bk\u00e9 d\u011bdictv\u00ed<\/h2>\n\n

Objev starov\u011bk\u00fdch kost\u00ed slona zd\u016fraz\u0148uje jedine\u010dn\u00e9 propojen\u00ed modern\u00ed infrastruktury a prav\u011bk\u00e9 historie v Los Angeles. S t\u00edm, jak se syst\u00e9m metra ve m\u011bst\u011b roz\u0161i\u0159uje, poskytuje nejen modern\u00ed dopravu, ale tak\u00e9 odhaluje pohled do d\u00e1vn\u00e9 minulosti tohoto regionu.<\/p>","protected":false},"excerpt":{"rendered":"

Objev zkamen\u011blin prav\u011bk\u00e9ho slona p\u0159i v\u00fdkopu metra v Los Angeles Objev a v\u00fdznam P\u0159i v\u00fdstavb\u011b stanice Wilshire\/La Brea metra v Los Angeles narazili d\u011bln\u00edci na \u00falomky prav\u011bk\u00e9ho slona, co\u017e je…<\/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":[88,3432,20417,20416,137,20418,20415],"class_list":["post-15313","post","type-post","status-publish","format-standard","hentry","category-paleontology","tag-archaeology","tag-mammoth","tag-mastodon","tag-los-angeles-subway","tag-paleontology","tag-prehistoric-california","tag-ancient-elephant-bones"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/15313","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=15313"}],"version-history":[{"count":1,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/15313\/revisions"}],"predecessor-version":[{"id":15314,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/15313\/revisions\/15314"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/media?parent=15313"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/categories?post=15313"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/tags?post=15313"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}