{"id":15218,"date":"2024-07-28T04:16:26","date_gmt":"2024-07-28T04:16:26","guid":{"rendered":"https:\/\/www.lifescienceart.com\/?p=15218"},"modified":"2024-07-28T04:16:26","modified_gmt":"2024-07-28T04:16:26","slug":"pachysuchus-a-dinosaur-in-disguise","status":"publish","type":"post","link":"https:\/\/www.lifescienceart.com\/vi\/science\/paleontology-and-evolution\/pachysuchus-a-dinosaur-in-disguise\/","title":{"rendered":"Pachysuchus: Kh\u1ee7ng long \u1ea9n n\u00e1u \u0111\u01b0\u1ee3c t\u00e1i kh\u00e1m ph\u00e1"},"content":{"rendered":"

Pachysuchus: M\u1ed9t lo\u00e0i kh\u1ee7ng long \u1ea9n n\u00e1u \u0111\u01b0\u1ee3c t\u00e1i kh\u00e1m ph\u00e1<\/h2>\n\n

Ph\u00e2n lo\u1ea1i l\u1ea1i m\u1ed9t m\u1ea3nh x\u01b0\u01a1ng h\u00e0m b\u00ed \u1ea9n<\/h2>\n\n

V\u00e0o n\u0103m 1947, nh\u00e0 c\u1ed5 sinh v\u1eadt h\u1ecdc C.C. Young \u0111\u00e3 ph\u00e1t hi\u1ec7n ra m\u1ed9t m\u1ea3nh v\u1ee1 c\u1ee7a h\u1ed9p s\u1ecd h\u00f3a th\u1ea1ch g\u1ea7n Lufeng, Trung Qu\u1ed1c. Ban \u0111\u1ea7u, \u00f4ng tin r\u1eb1ng n\u00f3 thu\u1ed9c v\u1ec1 m\u1ed9t lo\u00e0i kh\u1ee7ng long c\u1ed5 d\u00e0i c\u00f3 t\u00ean Lufengosaurus. Tuy nhi\u00ean, m\u1ed9t v\u00e0i n\u0103m sau, \u00f4ng \u0111\u00e3 ph\u00e2n lo\u1ea1i l\u1ea1i n\u00f3 th\u00e0nh phytosaur, m\u1ed9t lo\u00e0i \u0111\u1ed9ng v\u1eadt c\u1ed5 \u0111\u1ea1i gi\u1ed1ng v\u1edbi c\u00e1 s\u1ea5u.<\/p>\n\n

\u0110\u00e3 m\u1ea5t r\u1ed3i l\u1ea1i t\u00ecm th\u1ea5y: Vi\u1ec7c t\u00e1i kh\u00e1m ph\u00e1 ra Pachysuchus<\/h2>\n\n

H\u00f3a th\u1ea1ch n\u00e0y v\u1eabn l\u00e0 m\u1ed9t c\u1ed9t m\u1ed1c quan tr\u1ecdng \u0111\u1ed1i v\u1edbi c\u00e1c lo\u00e0i phytosaur, v\u00ec n\u00f3 cho th\u1ea5y s\u1ef1 t\u1ed3n t\u1ea1i c\u1ee7a ch\u00fang trong h\u00e0ng tri\u1ec7u n\u0103m sau khi ch\u00fang \u0111\u00e3 bi\u1ebfn m\u1ea5t \u1edf nh\u1eefng n\u01a1i kh\u00e1c. Tuy nhi\u00ean, kh\u00f4ng ph\u1ea3i t\u1ea5t c\u1ea3 c\u00e1c nh\u00e0 c\u1ed5 sinh v\u1eadt h\u1ecdc \u0111\u1ec1u \u0111\u1ed3ng \u00fd v\u1edbi nh\u1eadn d\u1ea1ng c\u1ee7a Young. M\u1ed9t s\u1ed1 ng\u01b0\u1eddi cho r\u1eb1ng m\u1ea3nh v\u1ee1 n\u00e0y \u0111\u00e3 qu\u00e1 h\u01b0 h\u1ecfng \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh ch\u00ednh x\u00e1c ph\u00e2n lo\u1ea1i c\u1ee7a n\u00f3.<\/p>\n\n

Trong nh\u1eefng n\u0103m g\u1ea7n \u0111\u00e2y, c\u00e1c nh\u00e0 c\u1ed5 sinh v\u1eadt h\u1ecdc Paul Barrett v\u00e0 Xu Xing \u0111\u00e3 ki\u1ec3m tra l\u1ea1i h\u00f3a th\u1ea1ch Pachysuchus. H\u1ecd ph\u00e1t hi\u1ec7n ra r\u1eb1ng n\u00f3 thi\u1ebfu nh\u1eefng \u0111\u1eb7c \u0111i\u1ec3m ch\u00ednh c\u1ee7a c\u00e1c lo\u00e0i phytosaur, ch\u1eb3ng h\u1ea1n nh\u01b0 l\u1ed7 m\u0169i n\u1eb1m r\u1ea5t xa v\u1ec1 ph\u00eda sau m\u00f5m. Thay v\u00e0o \u0111\u00f3, n\u00f3 th\u1ec3 hi\u1ec7n nhi\u1ec1u \u0111\u1eb7c \u0111i\u1ec3m tr\u00f9ng kh\u1edbp v\u1edbi c\u00e1c lo\u00e0i kh\u1ee7ng long sauropodomorph.<\/p>\n\n

M\u1ed9t lo\u00e0i kh\u1ee7ng long sauropodomorph c\u1ea3i trang<\/h2>\n\n

Barrett v\u00e0 Xu k\u1ebft lu\u1eadn r\u1eb1ng Pachysuchus kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t lo\u00e0i phytosaur m\u00e0 l\u00e0 m\u1ed9t lo\u00e0i kh\u1ee7ng long sauropodomorph. Sauropodomorph l\u00e0 m\u1ed9t nh\u00f3m kh\u1ee7ng long \u0111a d\u1ea1ng bao g\u1ed3m c\u00e1c lo\u00e0i kh\u1ed5ng l\u1ed3 c\u1ed5 d\u00e0i nh\u01b0 Brachiosaurus. M\u1ea3nh x\u01b0\u01a1ng h\u00e0m c\u1ee7a Pachysuchus \u0111\u00e3 qu\u00e1 h\u01b0 h\u1ecfng \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh ch\u00ednh x\u00e1c lo\u00e0i kh\u1ee7ng long m\u00e0 n\u00f3 thu\u1ed9c v\u1ec1, nh\u01b0ng c\u00f3 kh\u1ea3 n\u0103ng n\u00f3 \u0111\u1ea1i di\u1ec7n cho m\u1ed9t lo\u00e0i kh\u1ee7ng long sauropodomorph tr\u01b0\u1edbc \u0111\u00e2y ch\u01b0a t\u1eebng \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn.<\/p>\n\n

S\u1ef1 v\u1eafng m\u1eb7t c\u1ee7a c\u00e1c lo\u00e0i phytosaur k\u1ef7 Jura \u1edf Ch\u00e2u \u00c1<\/h2>\n\n

Vi\u1ec7c ph\u00e2n lo\u1ea1i l\u1ea1i Pachysuchus l\u00e0 kh\u1ee7ng long c\u00f3 \u00fd ngh\u0129a \u0111\u1ed1i v\u1edbi s\u1ef1 hi\u1ec3u bi\u1ebft c\u1ee7a ch\u00fang ta v\u1ec1 s\u1ef1 c\u00f9ng t\u1ed3n t\u1ea1i c\u1ee7a kh\u1ee7ng long v\u00e0 c\u00e1c lo\u00e0i phytosaur. C\u00e1c lo\u00e0i phytosaur, s\u1ed1ng c\u00f9ng v\u1edbi v\u00e0 s\u0103n nh\u1eefng lo\u00e0i kh\u1ee7ng long \u0111\u1ea7u ti\u00ean, \u0111\u01b0\u1ee3c cho l\u00e0 \u0111\u00e3 tuy\u1ec7t ch\u1ee7ng v\u00e0o cu\u1ed1i k\u1ef7 Trias. Tuy nhi\u00ean, nh\u1eefng \u0111\u1ec1 xu\u1ea5t v\u1ec1 s\u1ef1 xu\u1ea5t hi\u1ec7n c\u1ee7a c\u00e1c lo\u00e0i phytosaur k\u1ef7 Jura \u1edf Ch\u00e2u \u00c1 v\u1eabn c\u00f2n r\u1ea5t \u0111\u00e1ng ng\u1edd.<\/p>\n\n

S\u1ef1 v\u1eafng m\u1eb7t c\u1ee7a c\u00e1c lo\u00e0i phytosaur k\u1ef7 Jura \u1edf Ch\u00e2u \u00c1 cho th\u1ea5y r\u1eb1ng nh\u1eefng sinh v\u1eadt n\u00e0y c\u00f3 th\u1ec3 \u0111\u00e3 b\u1ecb x\u00f3a s\u1ed5 s\u1edbm h\u01a1n ch\u00fang ta ngh\u0129 tr\u01b0\u1edbc \u0111\u00e2y. \u0110i\u1ec1u n\u00e0y h\u1ed7 tr\u1ee3 cho gi\u1ea3 thuy\u1ebft r\u1eb1ng kh\u1ee7ng long \u0111\u00e3 v\u01b0\u01a1n l\u00ean th\u1ed1ng tr\u1ecb to\u00e0n c\u1ea7u sau khi c\u00e1c lo\u00e0i phytosaur v\u00e0 c\u00e1c lo\u00e0i s\u0103n m\u1ed3i \u0111\u1ed9ng v\u1eadt c\u1ed5 l\u1edbn kh\u00e1c tuy\u1ec7t ch\u1ee7ng.<\/p>\n\n

Nh\u1eefng h\u00e0m \u00fd \u0111\u1ed1i v\u1edbi qu\u00e1 tr\u00ecnh ti\u1ebfn h\u00f3a c\u1ee7a kh\u1ee7ng long<\/h2>\n\n

Vi\u1ec7c ph\u00e2n lo\u1ea1i l\u1ea1i Pachysuchus cung c\u1ea5p nh\u1eefng hi\u1ec3u bi\u1ebft m\u1edbi v\u1ec1 qu\u00e1 tr\u00ecnh ti\u1ebfn h\u00f3a c\u1ee7a kh\u1ee7ng long. N\u00f3 ch\u1ec9 ra r\u1eb1ng s\u1ef1 \u0111a d\u1ea1ng c\u1ee7a c\u00e1c lo\u00e0i kh\u1ee7ng long ch\u00e2n th\u1eb1n l\u1eb1n c\u00f3 th\u1ec3 l\u1edbn h\u01a1n nh\u1eefng g\u00ec ch\u00fang ta t\u1eebng bi\u1ebft tr\u01b0\u1edbc \u0111\u00e2y. Ngo\u00e0i ra, n\u00f3 \u0111\u1eb7t ra nh\u1eefng c\u00e2u h\u1ecfi v\u1ec1 c\u00e1c t\u01b0\u01a1ng t\u00e1c c\u1ea1nh tranh gi\u1eefa kh\u1ee7ng long v\u00e0 c\u00e1c lo\u00e0i \u0111\u1ed9ng v\u1eadt c\u1ed5 kh\u00e1c trong giai \u0111o\u1ea1n \u0111\u1ea7u k\u1ef7 Jura.<\/p>\n\n

Nghi\u00ean c\u1ee9u \u0111ang di\u1ec5n ra<\/h2>\n\n

C\u1ea7n c\u00f3 th\u00eam nghi\u00ean c\u1ee9u \u0111\u1ec3 hi\u1ec3u \u0111\u1ea7y \u0111\u1ee7 v\u1ec1 nh\u1eefng h\u00e0m \u00fd c\u1ee7a vi\u1ec7c ph\u00e2n lo\u1ea1i l\u1ea1i Pachysuchus. C\u00e1c nh\u00e0 c\u1ed5 sinh v\u1eadt h\u1ecdc v\u1eabn \u0111ang ti\u1ebfp t\u1ee5c nghi\u00ean c\u1ee9u h\u1ed3 s\u01a1 h\u00f3a th\u1ea1ch v\u00e0 ti\u1ebfn h\u00e0nh c\u00e1c ph\u00e2n t\u00edch ph\u00e1t sinh lo\u00e0i \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh m\u1ed1i quan h\u1ec7 ch\u00ednh x\u00e1c gi\u1eefa Pachysuchus v\u00e0 c\u00e1c lo\u00e0i kh\u1ee7ng long kh\u00e1c. Nh\u1eefng n\u1ed7 l\u1ef1c n\u00e0y s\u1ebd gi\u00fap l\u00e0m s\u00e1ng t\u1ecf l\u1ecbch s\u1eed ti\u1ebfn h\u00f3a ph\u1ee9c t\u1ea1p c\u1ee7a nh\u1eefng sinh v\u1eadt c\u1ed5 \u0111\u1ea1i n\u00e0y.<\/p>","protected":false},"excerpt":{"rendered":"

Pachysuchus: M\u1ed9t lo\u00e0i kh\u1ee7ng long \u1ea9n n\u00e1u \u0111\u01b0\u1ee3c t\u00e1i kh\u00e1m ph\u00e1 Ph\u00e2n lo\u1ea1i l\u1ea1i m\u1ed9t m\u1ea3nh x\u01b0\u01a1ng h\u00e0m b\u00ed \u1ea9n V\u00e0o n\u0103m 1947, nh\u00e0 c\u1ed5 sinh v\u1eadt h\u1ecdc C.C. Young…<\/p>\n","protected":false},"author":1,"featured_media":23920,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1011],"tags":[137,2704,20292,20293,941],"class_list":["post-15218","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-paleontology-and-evolution","tag-paleontology","tag-dinosaur","tag-pachysuchus","tag-phytosaur","tag-sauropodomorph"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/15218","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=15218"}],"version-history":[{"count":1,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/15218\/revisions"}],"predecessor-version":[{"id":15219,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/15218\/revisions\/15219"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/media\/23920"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/media?parent=15218"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/categories?post=15218"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/tags?post=15218"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}