Tr\u00ean nh\u1eefng ng\u1ecdn n\u00fai hoang vu \u1edf ph\u00eda t\u00e2y nam Nevada, n\u01a1i m\u1eb7t \u0111\u1ea5t kh\u00f4 c\u1eb1n g\u1eb7p g\u1ee1 m\u1eb7t tr\u1eddi thi\u00eau \u0111\u1ed1t, c\u00f3 nh\u1eefng t\u00e0n t\u00edch h\u00f3a th\u1ea1ch c\u1ee7a m\u1ed9t k\u1ef3 quan c\u1ed5 \u0111\u1ea1i: c\u00e1c r\u1ea1n san h\u00f4 \u0111\u1ea7u ti\u00ean tr\u00ean th\u1ebf gi\u1edbi. Nh\u1eefng r\u1ea1n san h\u00f4 c\u1ed5 n\u00e0y, \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng b\u1edfi nh\u1eefng sinh v\u1eadt b\u00ed \u1ea9n c\u00f3 t\u00ean l\u00e0 \u0111\u1ed9ng v\u1eadt c\u1ed5 l\u1ed7, cung c\u1ea5p c\u00e1i nh\u00ecn tho\u00e1ng qua v\u1ec1 c\u00e1c h\u1ec7 sinh th\u00e1i bi\u1ec3n s\u00f4i \u0111\u1ed9ng \u0111\u00e3 t\u1ed3n t\u1ea1i c\u00e1ch \u0111\u00e2y h\u00e0ng tri\u1ec7u n\u0103m.<\/p>\n\n
C\u00e1ch \u0111\u00e2y kho\u1ea3ng 520 tri\u1ec7u n\u0103m, ngay sau v\u1ee5 n\u1ed5 k\u1ef7 Cambri \u0111\u00e3 m\u1edf ra s\u1ef1 gia t\u0103ng m\u1ea1nh m\u1ebd c\u1ee7a s\u1ef1 s\u1ed1ng ph\u1ee9c t\u1ea1p, \u0111\u1ed9ng v\u1eadt c\u1ed5 l\u1ed7 \u0111\u00e3 xu\u1ea5t hi\u1ec7n v\u1edbi t\u01b0 c\u00e1ch l\u00e0 nh\u1eefng ng\u01b0\u1eddi x\u00e2y d\u1ef1ng r\u1ea1n \u0111\u1ea7u ti\u00ean. Nh\u1eefng lo\u00e0i b\u1ecdt bi\u1ec3n l\u1ecdc th\u1ee9c \u0103n n\u00e0y, tr\u00f4ng gi\u1ed1ng nh\u01b0 nh\u1eefng chi\u1ebfc b\u00e1nh r\u00e1n ph\u00e2n \u0111o\u1ea1n d\u01b0\u1edbi k\u00ednh hi\u1ec3n vi, \u0111\u00e3 \u0111\u00f3ng vai tr\u00f2 r\u1ea5t quan tr\u1ecdng trong vi\u1ec7c t\u1ea1o ra c\u00e1c c\u1ea5u tr\u00fac d\u01b0\u1edbi n\u01b0\u1edbc ph\u1ee9c t\u1ea1p. Kh\u00f4ng gi\u1ed1ng nh\u01b0 c\u00e1c lo\u00e0i san h\u00f4 x\u00e2y d\u1ef1ng r\u1ea1n hi\u1ec7n \u0111\u1ea1i, \u0111\u1ed9ng v\u1eadt c\u1ed5 l\u1ed7 ch\u1ec9 ph\u00e1t tri\u1ec3n trong m\u1ed9t th\u1eddi gian t\u01b0\u01a1ng \u0111\u1ed1i ng\u1eafn, ch\u1ec9 kho\u1ea3ng 20 tri\u1ec7u n\u0103m.<\/p>\n\n
M\u1ed9t trong nh\u1eefng v\u00ed d\u1ee5 \u0111\u01b0\u1ee3c b\u1ea3o t\u1ed3n t\u1ed1t nh\u1ea5t v\u1ec1 nh\u1eefng r\u1ea1n san h\u00f4 c\u1ed5 n\u00e0y l\u00e0 r\u1ea1n san h\u00f4 Gold Point \u1edf Qu\u1eadn Esmeralda, Nevada. M\u1ecf h\u00f3a th\u1ea1ch d\u00e0y 70 m\u00e9t n\u00e0y mang \u0111\u1ebfn cho c\u00e1c nh\u00e0 khoa h\u1ecdc m\u1ed9t c\u01a1 h\u1ed9i \u0111\u1ed9c nh\u1ea5t \u0111\u1ec3 nghi\u00ean c\u1ee9u nh\u1eefng chi ti\u1ebft ph\u1ee9c t\u1ea1p c\u1ee7a m\u1ed9t h\u1ec7 sinh th\u00e1i r\u1ea1n san h\u00f4 c\u1ed5 \u0111\u1ea1i. B\u1eb1ng c\u00e1ch ki\u1ec3m tra c\u00e1c di t\u00edch h\u00f3a th\u1ea1ch, c\u00e1c nh\u00e0 c\u1ed5 sinh v\u1eadt h\u1ecdc \u0111\u00e3 c\u00f3 \u0111\u01b0\u1ee3c nh\u1eefng hi\u1ec3u bi\u1ebft s\u00e2u s\u1eafc v\u1ec1 s\u1ef1 \u0111a d\u1ea1ng c\u1ee7a c\u00e1c lo\u00e0i, c\u00e1c \u0111i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng v\u00e0 s\u1ef1 suy gi\u1ea3m cu\u1ed1i c\u00f9ng c\u1ee7a nh\u1eefng c\u1ea5u tr\u00fac \u0111\u00e1ng ch\u00fa \u00fd n\u00e0y.<\/p>\n\n
R\u1ea1n san h\u00f4 h\u00f3a th\u1ea1ch \u1edf Gold Point \u1ea9n ch\u1ee9a nh\u1eefng manh m\u1ed1i v\u1ec1 s\u1ef1 tuy\u1ec7t ch\u1ee7ng b\u00ed \u1ea9n c\u1ee7a \u0111\u1ed9ng v\u1eadt c\u1ed5 l\u1ed7. V\u00e0o kho\u1ea3ng 515 tri\u1ec7u n\u0103m tr\u01b0\u1edbc, m\u1ed9t kh\u1ed1i \u0111\u1ea5t l\u1edbn \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 Laurentia \u0111\u00e3 t\u00e1ch kh\u1ecfi m\u1ed9t si\u00eau l\u1ee5c \u0111\u1ecba ph\u00eda nam, gi\u1ea3i ph\u00f3ng m\u1ed9t l\u01b0\u1ee3ng l\u1edbn carbon v\u00e0o kh\u00ed quy\u1ec3n. S\u1ef1 ki\u1ec7n n\u00e0y, \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 s\u1ef1 ki\u1ec7n l\u1ec7ch h\u01b0\u1edbng \u0111\u1ed3ng v\u1ecb carbon tuy\u1ec7t ch\u1ee7ng c\u1ee7a \u0111\u1ed9ng v\u1eadt c\u1ed5 l\u1ed7, \u0111\u00e3 d\u1eabn \u0111\u1ebfn t\u00ecnh tr\u1ea1ng axit h\u00f3a \u0111\u1ea1i d\u01b0\u01a1ng v\u00e0 l\u00e0m gi\u1ea3m oxy, t\u1ea1o ra m\u1ed9t m\u00f4i tr\u01b0\u1eddng th\u00f9 \u0111\u1ecbch cho nh\u1eefng ng\u01b0\u1eddi x\u00e2y d\u1ef1ng r\u1ea1n san h\u00f4 c\u1ed5 \u0111\u1ea1i n\u00e0y.<\/p>\n\n
M\u1eb7c d\u00f9 c\u00f3 ngu\u1ed3n g\u1ed1c t\u1eeb th\u1eddi c\u1ed5 \u0111\u1ea1i, c\u00e1c r\u1ea1n san h\u00f4 c\u1ee7a \u0111\u1ed9ng v\u1eadt c\u1ed5 l\u1ed7 l\u1ea1i c\u00f3 nh\u1eefng \u0111i\u1ec3m t\u01b0\u01a1ng \u0111\u1ed3ng \u0111\u00e1ng kinh ng\u1ea1c v\u1edbi c\u00e1c r\u1ea1n san h\u00f4 ph\u1ee7 \u0111\u1ea7y san h\u00f4 hi\u1ec7n \u0111\u1ea1i. Ch\u00fang cung c\u1ea5p m\u00f4i tr\u01b0\u1eddng s\u1ed1ng cho nhi\u1ec1u d\u1ea1ng s\u1ed1ng bi\u1ec3n, bao g\u1ed3m c\u1ea3 ba th\u00f9y, \u0111\u1ed9ng v\u1eadt h\u00ecnh hoa v\u00e0 \u0111\u1ed9ng v\u1eadt th\u00e2n l\u1ed7. Nh\u1eefng di t\u00edch h\u00f3a th\u1ea1ch c\u1ee7a nh\u1eefng sinh v\u1eadt n\u00e0y ti\u1ebft l\u1ed9 m\u1ed9t h\u1ec7 sinh th\u00e1i ph\u1ee9c t\u1ea1p v\u1edbi c\u00e1c lo\u00e0i kh\u00e1c nhau chi\u1ebfm c\u00e1c h\u1ed1c c\u1ee5 th\u1ec3, t\u01b0\u01a1ng t\u1ef1 nh\u01b0 s\u1ef1 \u0111a d\u1ea1ng \u0111\u01b0\u1ee3c t\u00ecm th\u1ea5y tr\u00ean c\u00e1c r\u1ea1n san h\u00f4 hi\u1ec7n \u0111\u1ea1i.<\/p>\n\n
Gi\u1ed1ng nh\u01b0 nh\u1eefng ng\u01b0\u1eddi anh em h\u1ecd hi\u1ec7n \u0111\u1ea1i c\u1ee7a ch\u00fang, c\u00e1c r\u1ea1n san h\u00f4 c\u1ee7a \u0111\u1ed9ng v\u1eadt c\u1ed5 l\u1ed7 l\u00e0 trung t\u00e2m c\u1ee7a s\u1ef1 \u0111a d\u1ea1ng sinh h\u1ecdc v\u00e0 \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng trong h\u1ec7 sinh th\u00e1i bi\u1ec3n. R\u1ea1n san h\u00f4 Gold Point, v\u1edbi kh\u1ea3 n\u0103ng b\u1ea3o t\u1ed3n \u0111\u1eb7c bi\u1ec7t, h\u00e9 l\u1ed9 m\u1ed9t c\u00e1i nh\u00ecn tho\u00e1ng qua v\u1ec1 th\u1ebf gi\u1edbi s\u00f4i \u0111\u1ed9ng c\u1ee7a nh\u1eefng r\u1ea1n san h\u00f4 c\u1ed5 \u0111\u1ea1i n\u00e0y. N\u00f3 \u0111\u00f3ng vai tr\u00f2 nh\u01b0 m\u1ed9t l\u1eddi nh\u1eafc nh\u1edf v\u1ec1 s\u1ef1 k\u1ebft n\u1ed1i ch\u1eb7t ch\u1ebd c\u1ee7a s\u1ef1 s\u1ed1ng tr\u00ean Tr\u00e1i \u0111\u1ea5t v\u00e0 t\u00e1c \u0111\u1ed9ng s\u00e2u s\u1eafc m\u00e0 nh\u1eefng thay \u0111\u1ed5i v\u1ec1 m\u00f4i tr\u01b0\u1eddng c\u00f3 th\u1ec3 g\u00e2y ra \u0111\u1ed1i v\u1edbi to\u00e0n b\u1ed9 h\u1ec7 sinh th\u00e1i.<\/p>","protected":false},"excerpt":{"rendered":"
C\u00e1c r\u1ea1n san h\u00f4 c\u1ed5 \u1edf Nevada: H\u00f3a th\u1ea1ch c\u1ee7a h\u1ec7 sinh th\u00e1i \u0111\u1ea7u ti\u00ean tr\u00ean th\u1ebf gi\u1edbi Tr\u00ean nh\u1eefng ng\u1ecdn n\u00fai hoang vu \u1edf ph\u00eda t\u00e2y nam Nevada, n\u01a1i…<\/p>\n","protected":false},"author":1,"featured_media":24187,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[138],"tags":[24408,24409,3398,34,137,21772,239,3173,99,7049],"class_list":["post-18711","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-paleontology","tag-ancient-reefs","tag-archaeocyaths","tag-ocean-acidification","tag-climate-change","tag-paleontology","tag-marine-biodiversity","tag-fossils","tag-nevada","tag-lifescienceart","tag-cambrian-explosion"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/18711","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/comments?post=18711"}],"version-history":[{"count":2,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/18711\/revisions"}],"predecessor-version":[{"id":24188,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/18711\/revisions\/24188"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/media\/24187"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/media?parent=18711"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/categories?post=18711"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/tags?post=18711"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}