Cov kws tshawb fawb hauv Ganzhou City, Tuam Tshoj sab qab teb Jiangxi Xeev, tau tshawb pom qhov kev tshawb pom tshiab. Lawv nrhiav pom cov pob txha ntawm ib tug dinosaur, uas zaum ntawm nws lub zes ntawm petrified qe.
Lub dinosaur, hu ua oviraptorosaur (oviraptor), yog ib feem ntawm ib pawg ntawm cov noog zoo li theropod dinosaurs uas tau vam meej thoob plaws lub sijhawm Cretaceous (145 txog 66 lab xyoo dhau los).
Cov neeg laus oviraptor fossils thiab embryonic qe tau sau hnub rau ib ncig ntawm 70 lab xyoo dhau los. Nov yog thawj zaug uas cov kws tshawb fawb tau tshawb pom qhov tsis yog avian dinosaur so ntawm lub zes petrified ntawm cov qe, uas tseem muaj tus menyuam nyob hauv!
Cov pob txha hauv nqe lus nug yog 70-million-xyoo-laus laus laus oviraptorid theropod dinosaur zaum saum lub zes ntawm nws cov qe petrified. Ntau lub qe (tsawg kawg peb ntawm cov uas muaj embryos) yog pom, zoo li cov neeg laus lub hauv pliaj, lub plab mog, sab caj npab, thiab ib feem ntawm tus Tsov tus tw. (Indiana University of Pennsylvania lub Shandong Bi)
Cov kws tshawb fawb tau hais li cas txog qhov kev tshawb pom?
Txoj kev tshawb no tus thawj kws sau ntawv, Dr. Shundong Bi ntawm Lub Chaw rau Vertebrate Evolutionary Biology, Lub Tsev Haujlwm ntawm Palaeontology, Yunnan University, Tuam Tshoj, thiab Department of Biology, Indiana University of Pennsylvania, Tebchaws USA, tau hais hauv tsab ntawv tshaj tawm, "Dinosaurs khaws cia rau ntawm lawv lub zes yog qhov tsawg, thiab yog cov pob txha embryos. Nov yog thawj zaug uas tsis yog avian dinosaur tau pom, zaum ntawm lub zes ntawm cov qe uas khaws cia embryos, hauv ib qho qauv zoo nkauj. "
Txawm hais tias cov kws tshawb fawb tau pom cov neeg laus oviraptors ntawm lawv lub zes nrog cov qe ua ntej, qhov no yog thawj zaug embryos tau pom nyob rau hauv lub qe. Kawm co-sau Dr. Lamanna, ib tug paleontologist los ntawm Carnegie Museum of Natural History, USA, piav qhia: "Qhov kev tshawb pom no, hauv qhov tseem ceeb, tus cwj pwm fossilized, yog qhov tsawg tshaj plaws ntawm cov tsis tshua muaj nyob hauv dinosaurs. Txawm hais tias ob peb tus neeg laus oviraptorids tau pom ntawm zes ntawm lawv cov qe ua ntej, tsis muaj embryos puas tau pom hauv cov qe no. "
Dr. Xu, tus kws tshawb fawb ntawm lub koom haum ntawm Vertebrate Paleontology thiab Paleoanthropology hauv Beijing, Tuam Tshoj, thiab ib qho ntawm cov kws sau ntawv tshawb fawb, ntseeg tias qhov kev tshawb pom tsis zoo no muaj cov ntaub ntawv muaj txiaj ntsig, "Nws yog qhov txawv tshaj plaws uas xav tias ntau npaum li cas cov ntaub ntawv lom neeg raug ntes hauv ib pob pob txha." Dr. Xu hais tias, "Peb yuav kawm los ntawm cov qauv no ntau xyoo tom ntej."
Cov qe fossilized twb tab tom yuav hle!
Cov kws tshawb fawb pom ib tus neeg laus oviraptor lub cev pob txha tawg nrog pob zeb hauv nws lub plab. Qhov no yog ib qho piv txwv ntawm gastroliths, “lub plab pob zeb,” uas tus tsiaj tau noj los pab nws zom nws cov zaub mov. Nws kuj yog thawj qhov piv txwv ntawm qhov tsis muaj teeb meem gastroliths pom nyob rau hauv ib qho oviraptorid, uas cov kws tshawb fawb xav tias yuav pab ua kom lub teeb pom kev ntawm dinosaurs cov khoom noj.
Nyob rau hauv ib tug brooding los yog tiv thaiv stance, tus dinosaur tau pom crouching tshaj lub zes ntawm tsawg kawg yog 24 fossilized qe. Qhov no qhia tau hais tias tus dinosaur perished thaum brooding los yog tiv thaiv nws cov me nyuam.
Txawm li cas los xij, thaum cov kws tshawb fawb tau siv oxygen isotope tsom rau ntawm cov qe, lawv pom tias lawv tau raug tsim los ntawm qhov kub thiab txias, zoo li noog, qiv kev ntseeg siab rau txoj kev xav tias tus neeg laus tuag thaum brooding nws zes.
Yam tsawg kawg xya ntawm cov qe fossilized tseem muaj unhatched oviraptorid embryos nyob rau hauv lawv. Cov kws tshawb fawb ntseeg tias qee lub qe tau nyob ntawm ntug ntawm hatching raws li kev loj hlob ntawm cov peev txheej. Raws li Dr. Lamanna, "Tus dinosaur no yog niam txiv saib xyuas uas thaum kawg tau muab nws txoj sia thaum tu nws cov hluas."
