{"id":15478,"date":"2024-10-09T19:12:21","date_gmt":"2024-10-09T19:12:21","guid":{"rendered":"https:\/\/www.lifescienceart.com\/?p=15478"},"modified":"2024-10-09T19:12:21","modified_gmt":"2024-10-09T19:12:21","slug":"tiny-fossils-reveal-the-rise-of-mammals-on-madagascar","status":"publish","type":"post","link":"https:\/\/www.lifescienceart.com\/vi\/science\/natural-history\/tiny-fossils-reveal-the-rise-of-mammals-on-madagascar\/","title":{"rendered":"H\u00f3a th\u1ea1ch nh\u1ecf b\u00e9 h\u00e9 l\u1ed9 s\u1ef1 tr\u1ed7i d\u1eady c\u1ee7a \u0111\u1ed9ng v\u1eadt c\u00f3 v\u00fa \u1edf Madagascar"},"content":{"rendered":"

H\u00f3a th\u1ea1ch nh\u1ecf b\u00e9 h\u00e9 l\u1ed9 s\u1ef1 tr\u1ed7i d\u1eady c\u1ee7a \u0111\u1ed9ng v\u1eadt c\u00f3 v\u00fa \u1edf Madagascar<\/h2>\n\n

\u0110a d\u1ea1ng sinh h\u1ecdc \u0111\u1ed9c \u0111\u00e1o c\u1ee7a Madagascar<\/h2>\n\n

Madagascar l\u00e0 m\u1ed9t \u0111i\u1ec3m n\u00f3ng v\u1ec1 \u0111a d\u1ea1ng sinh h\u1ecdc, l\u00e0 n\u01a1i sinh s\u1ed1ng c\u1ee7a m\u1ed9t lo\u1ea1t c\u00e1c lo\u00e0i \u0111\u1ed9c \u0111\u00e1o kh\u00f4ng t\u00ecm th\u1ea5y \u1edf b\u1ea5t k\u1ef3 n\u01a1i n\u00e0o kh\u00e1c tr\u00ean Tr\u00e1i \u0111\u1ea5t. S\u1ef1 \u0111a d\u1ea1ng sinh h\u1ecdc n\u00e0y ph\u1ea7n l\u1edbn l\u00e0 do s\u1ef1 c\u00f4 l\u1eadp l\u00e2u d\u00e0i c\u1ee7a h\u00f2n \u0111\u1ea3o, n\u01a1i cho ph\u00e9p h\u1ec7 \u0111\u1ed9ng th\u1ef1c v\u1eadt c\u1ee7a n\u00f3 ti\u1ebfn h\u00f3a th\u00e0nh nh\u1eefng d\u1ea1ng ri\u00eang bi\u1ec7t.<\/p>\n\n

Kho\u1ea3ng tr\u1ed1ng h\u00f3a th\u1ea1ch<\/h2>\n\n

M\u1eb7c d\u00f9 c\u00f3 s\u1ef1 \u0111a d\u1ea1ng sinh h\u1ecdc phong ph\u00fa, nh\u01b0ng h\u1ed3 s\u01a1 h\u00f3a th\u1ea1ch c\u1ee7a Madagascar l\u1ea1i c\u00f3 m\u1ed9t kho\u1ea3ng tr\u1ed1ng \u0111\u00e1ng k\u1ec3 gi\u1eefa th\u1eddi k\u1ef3 k\u1ebft th\u00fac c\u1ee7a k\u1ef7 nguy\u00ean Kh\u1ee7ng long, c\u00e1ch \u0111\u00e2y kho\u1ea3ng 66 tri\u1ec7u n\u0103m v\u00e0 cu\u1ed1i k\u1ef7 Pleistocene, c\u00e1ch \u0111\u00e2y kho\u1ea3ng 26.000 n\u0103m. Kho\u1ea3ng tr\u1ed1ng n\u00e0y khi\u1ebfn c\u00e1c nh\u00e0 khoa h\u1ecdc t\u1ef1 h\u1ecfi l\u00e0m th\u1ebf n\u00e0o m\u00e0 s\u1ef1 \u0111a d\u1ea1ng sinh h\u1ecdc hi\u1ec7n t\u1ea1i c\u1ee7a Madagascar l\u1ea1i c\u00f3 th\u1ec3 t\u1ed3n t\u1ea1i.<\/p>\n\n

Nghi\u00ean c\u1ee9u c\u1ee7a nh\u00e0 c\u1ed5 sinh v\u1eadt h\u1ecdc Karen Samonds<\/h2>\n\n

Nh\u00e0 c\u1ed5 sinh v\u1eadt h\u1ecdc Karen Samonds c\u1ee7a \u0110\u1ea1i h\u1ecdc Northern Illinois \u0111\u00e3 d\u00e0nh nghi\u00ean c\u1ee9u c\u1ee7a m\u00ecnh \u0111\u1ec3 l\u1ea5p \u0111\u1ea7y kho\u1ea3ng tr\u1ed1ng h\u00f3a th\u1ea1ch n\u00e0y. C\u00f4ng tr\u00ecnh c\u1ee7a nh\u00f3m b\u00e0 \u0111\u00e3 ph\u00e1t hi\u1ec7n ra nh\u1eefng h\u00f3a th\u1ea1ch nh\u1ecf b\u00e9 \u0111ang l\u00e0m s\u00e1ng t\u1ecf c\u00e2u chuy\u1ec7n ti\u1ebfn h\u00f3a c\u00f2n thi\u1ebfu c\u1ee7a Madagascar.<\/p>\n\n

Kh\u00e1m ph\u00e1 Vintana<\/h2>\n\n

M\u1ed9t trong nh\u1eefng kh\u00e1m ph\u00e1 quan tr\u1ecdng nh\u1ea5t c\u1ee7a Samonds l\u00e0 Vintana, m\u1ed9t lo\u00e0i \u0111\u1ed9ng v\u1eadt c\u00f3 v\u00fa ban \u0111\u1ea7u s\u1ed1ng c\u00e1ch \u0111\u00e2y kho\u1ea3ng 70 \u0111\u1ebfn 66 tri\u1ec7u n\u0103m. Kh\u00e1m ph\u00e1 Vintana cho th\u1ea5y \u0111\u1ed9ng v\u1eadt c\u00f3 v\u00fa \u0111\u00e3 c\u00f3 m\u1eb7t \u1edf Madagascar tr\u01b0\u1edbc khi kh\u1ee7ng long tuy\u1ec7t ch\u1ee7ng.<\/p>\n\n

B\u00f2 bi\u1ec3n Eotheroides<\/h2>\n\n

N\u0103m 2009, Samonds v\u00e0 nh\u00f3m c\u1ee7a b\u00e0 \u0111\u00e3 c\u00f4ng b\u1ed1 ph\u00e1t hi\u1ec7n ra Eotheroides lambondrano, m\u1ed9t lo\u00e0i b\u00f2 bi\u1ec3n 40 tri\u1ec7u n\u0103m tu\u1ed5i. Kh\u00e1m ph\u00e1 n\u00e0y l\u00e0 h\u00f3a th\u1ea1ch \u0111\u1ed9ng v\u1eadt c\u00f3 v\u00fa t\u1ed1t \u0111\u1ea7u ti\u00ean \u0111\u01b0\u1ee3c t\u00ecm th\u1ea5y trong kho\u1ea3ng tr\u1ed1ng gi\u1eefa th\u1eddi k\u1ef3 th\u1ed1ng tr\u1ecb c\u1ee7a kh\u1ee7ng long v\u00e0 cu\u1ed1i k\u1ef7 Pleistocene.<\/p>\n\n

\u0110\u1ecba \u0111i\u1ec3m h\u00f3a th\u1ea1ch Nosy Makamby<\/h2>\n\n

Nh\u00f3m c\u1ee7a Samonds \u0111\u00e3 ti\u1ebfn h\u00e0nh nghi\u00ean c\u1ee9u th\u1ef1c \u0111\u1ecba s\u00e2u r\u1ed9ng t\u1ea1i \u0111\u1ecba \u0111i\u1ec3m h\u00f3a th\u1ea1ch Nosy Makamby \u1edf Madagascar. \u0110\u1ecba \u0111i\u1ec3m n\u00e0y \u0111\u00e3 mang l\u1ea1i r\u1ea5t nhi\u1ec1u h\u00f3a th\u1ea1ch, bao g\u1ed3m b\u00f2 bi\u1ec3n, c\u00e1 \u0111u\u1ed1i, c\u00e1 m\u1eadp, c\u00e1 s\u1ea5u v\u00e0 r\u00f9a.<\/p>\n\n

H\u00f3a th\u1ea1ch \u0111\u1ed9ng v\u1eadt tr\u00ean c\u1ea1n<\/h2>\n\n

Ngo\u00e0i h\u00f3a th\u1ea1ch bi\u1ec3n, nh\u00f3m nghi\u00ean c\u1ee9u c\u0169ng t\u00ecm th\u1ea5y h\u00f3a th\u1ea1ch \u0111\u1ed9ng v\u1eadt tr\u00ean c\u1ea1n nh\u1ecf b\u00e9 t\u1ea1i Nosy Makamby. Nh\u1eefng h\u00f3a th\u1ea1ch n\u00e0y bao g\u1ed3m r\u0103ng v\u00e0 x\u01b0\u01a1ng c\u1ee7a d\u01a1i v\u00e0 g\u1eb7m nh\u1ea5m, cung c\u1ea5p b\u1eb1ng ch\u1ee9ng v\u1ec1 s\u1ef1 c\u00f3 m\u1eb7t c\u1ee7a nh\u1eefng \u0111\u1ed9ng v\u1eadt n\u00e0y \u1edf Madagascar trong k\u1ef7 Miocen.<\/p>\n\n

\u00dd ngh\u0129a \u0111\u1ed1i v\u1edbi s\u1ef1 ti\u1ebfn h\u00f3a c\u1ee7a b\u00f2 bi\u1ec3n<\/h2>\n\n

Kh\u00e1m ph\u00e1 Eotheroides \u0111\u00e3 c\u00e1ch m\u1ea1ng h\u00f3a s\u1ef1 hi\u1ec3u bi\u1ebft c\u1ee7a ch\u00fang ta v\u1ec1 s\u1ef1 ti\u1ebfn h\u00f3a c\u1ee7a b\u00f2 bi\u1ec3n. Tr\u01b0\u1edbc \u0111\u00e2y, c\u00e1c nh\u00e0 khoa h\u1ecdc tin r\u1eb1ng b\u00f2 bi\u1ec3n ti\u1ebfn h\u00f3a \u1edf B\u1eafc b\u00e1n c\u1ea7u v\u00e0 lan r\u1ed9ng v\u1ec1 ph\u00eda nam. Tuy nhi\u00ean, vi\u1ec7c ph\u00e1t hi\u1ec7n ra Eotheroides \u1edf Madagascar cho th\u1ea5y r\u1eb1ng b\u00f2 bi\u1ec3n c\u00f3 th\u1ec3 \u0111\u00e3 ti\u1ebfn h\u00f3a \u1edf Nam b\u00e1n c\u1ea7u.<\/p>\n\n

Th\u00f4ng tin chi ti\u1ebft v\u1ec1 \u0111a d\u1ea1ng sinh h\u1ecdc c\u1ee7a Madagascar<\/h2>\n\n

M\u1ed7i kh\u00e1m ph\u00e1 h\u00f3a th\u1ea1ch m\u1edbi t\u1eeb Madagascar gi\u00fap l\u1ea5p \u0111\u1ea7y nh\u1eefng kho\u1ea3ng tr\u1ed1ng trong ki\u1ebfn th\u1ee9c c\u1ee7a ch\u00fang ta v\u1ec1 s\u1ef1 \u0111a d\u1ea1ng sinh h\u1ecdc c\u1ee7a h\u00f2n \u0111\u1ea3o. Nh\u1eefng kh\u00e1m ph\u00e1 n\u00e0y kh\u00f4ng ch\u1ec9 l\u00e0m s\u00e1ng t\u1ecf ngu\u1ed3n g\u1ed1c c\u1ee7a h\u1ec7 \u0111\u1ed9ng th\u1ef1c v\u1eadt hi\u1ec7n t\u1ea1i c\u1ee7a Madagascar m\u00e0 c\u00f2n cung c\u1ea5p manh m\u1ed1i v\u1ec1 nh\u1eefng th\u1ebf gi\u1edbi \u0111\u00e3 m\u1ea5t t\u1eebng t\u1ed3n t\u1ea1i tr\u00ean h\u00f2n \u0111\u1ea3o n\u00e0y.<\/p>\n\n

Nh\u1eefng kh\u00e1m ph\u00e1 trong t\u01b0\u01a1ng lai<\/h2>\n\n

Samonds v\u00e0 nh\u00f3m c\u1ee7a b\u00e0 l\u1ea1c quan r\u1eb1ng h\u1ecd s\u1ebd ti\u1ebfp t\u1ee5c kh\u00e1m ph\u00e1 th\u00eam c\u00e1c h\u1ed3 s\u01a1 h\u00f3a th\u1ea1ch c\u1ee7a Madagascar. V\u1edbi m\u1ed7i chuy\u1ebfn th\u00e1m hi\u1ec3m m\u1edbi, h\u1ecd mang v\u1ec1 nhi\u1ec1u h\u00f3a th\u1ea1ch h\u01a1n v\u00e0 kh\u1ea3 n\u0103ng b\u1ed5 sung th\u00eam nhi\u1ec1u m\u1ea3nh gh\u00e9p v\u00e0o c\u00e2u chuy\u1ec7n v\u1ec1 c\u00e1ch th\u1ee9c s\u1ef1 s\u1ed1ng tr\u00ean Madagascar tr\u1edf n\u00ean \u0111a d\u1ea1ng v\u00e0 \u0111\u1ed9c \u0111\u00e1o \u0111\u1ebfn v\u1eady.<\/p>","protected":false},"excerpt":{"rendered":"

H\u00f3a th\u1ea1ch nh\u1ecf b\u00e9 h\u00e9 l\u1ed9 s\u1ef1 tr\u1ed7i d\u1eady c\u1ee7a \u0111\u1ed9ng v\u1eadt c\u00f3 v\u00fa \u1edf Madagascar \u0110a d\u1ea1ng sinh h\u1ecdc \u0111\u1ed9c \u0111\u00e1o c\u1ee7a Madagascar Madagascar l\u00e0 m\u1ed9t \u0111i\u1ec3m n\u00f3ng v\u1ec1…<\/p>\n","protected":false},"author":2,"featured_media":24561,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[244],"tags":[137,395,7077,239,5388,136],"class_list":["post-15478","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-natural-history","tag-paleontology","tag-biodiversity","tag-mammals","tag-fossils","tag-madagascar","tag-evolution"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/15478","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\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/comments?post=15478"}],"version-history":[{"count":2,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/15478\/revisions"}],"predecessor-version":[{"id":24562,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/15478\/revisions\/24562"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/media\/24561"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/media?parent=15478"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/categories?post=15478"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/tags?post=15478"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}