Cov kws tshawb fawb tau tshawb pom cov xim tiag tiag ntawm ib pawg ntawm cov kab mob pob txha uas nyob hauv amber hauv Myanmar qee 99 lab xyoo dhau los. Cov kab qub muaj xws li cuckoo wasps, dej yoov thiab kab, tag nrho cov no tuaj hauv cov xim xiav, ntshav thiab ntsuab.
Xwm yog qhov pom kev nplua nuj, tab sis cov pob txha tsis tshua muaj pov thawj ntawm cov kab mob cov xim qub.Tiam sis tam sim no, paleontologists tab tom nrhiav txoj hauv kev los xaiv cov xim los ntawm cov pob txha khaws cia zoo, txawm tias lawv yog dinosaurs thiab ya cov tsiaj reptiles lossis cov nab thiab tsiaj txhu thaum ub.
Kev nkag siab txog cov xim ntawm cov tsiaj uas ploj lawm yog qhov tseem ceeb heev vim nws tuaj yeem qhia cov kws tshawb fawb txog tus cwj pwm tsiaj.Piv txwv li, xim tuaj yeem siv los nyiam cov phooj ywg lossis ceeb toom cov tsiaj txhu, thiab txawm pab tswj qhov kub thiab txias.Kev kawm paub ntxiv txog lawv kuj tuaj yeem pab cov kws tshawb fawb kawm. ntau ntxiv txog ecosystems thiab ib puag ncig.
Nyob rau hauv txoj kev tshawb fawb tshiab, ib pab neeg tshawb fawb los ntawm Nanjing Institute of Geology thiab Palaeontology (NIGPAS) ntawm Suav Academy ntawm Kev Tshawb Fawb tau saib 35 tus qauv amber uas muaj cov kab zoo khaws cia zoo.Cov fossils tau pom nyob rau hauv amber mine nyob rau sab qaum teb Myanmar.
... Koom nrog ZME Cov Ntawv Xov Xwm rau cov xov xwm kev tshawb fawb zoo, cov yam ntxwv thiab cov ntawv tshwj xeeb.Koj tsis tuaj yeem ua yuam kev nrog ntau dua 40,000 tus neeg rau npe.
"Amber yog nruab nrab-Cretaceous, txog 99 lab xyoo, yos rov qab mus rau lub hnub nyoog kub ntawm dinosaurs," tus thawj coj Chenyan Cai tau hais hauv kev tso tawm.Nroj tsuag thiab tsiaj txhu nyob rau hauv cov tuab tuab yog khaws cia, qee qhov muaj kev ncaj ncees zoo li lub neej. "
Cov xim hauv cov xwm txheej feem ntau poob rau hauv peb pawg dav: bioluminescence, pigments, thiab cov xim xim.Amber fossils tau pom cov xim xim uas feem ntau khaus thiab striking (xws li xim hlau) thiab yog tsim los ntawm microscopic light-scattering lug nyob rau ntawm tus tsiaj. lub taub hau, lub cev thiab caj npab.
Cov kws tshawb fawb tau polished cov pob txha siv cov ntawv xuab zeb thiab diatomaceous lub ntiaj teb hmoov.Qee lub amber yog hauv av rau hauv nyias flakes kom cov kab kom pom tseeb, thiab ib puag ncig amber matrix yuav luag pob tshab hauv lub teeb ci.Cov duab suav nrog hauv txoj kev tshawb fawb tau hloov kho rau kho brightness thiab sib piv.
"Cov xim uas khaws cia hauv pob txha amber yog hu ua xim qauv," Yanhong Pan, tus kws sau ntawv ntawm kev tshawb fawb, tau hais hauv nqe lus. ntxiv tias qhov no "txhim kho yog lub luag haujlwm rau ntau yam xim uas peb paub txog hauv peb lub neej txhua hnub."
Ntawm tag nrho cov pob txha, cuckoo wasps yog qhov tshwj xeeb, nrog cov xim xiav-ntsuab, daj-liab, violet thiab ntsuab hues ntawm lawv lub taub hau, thorax, plab thiab ob txhais ceg. .Lwm qhov kev sib tw muaj xws li cov kab xiav thiab ntshav kab thiab xim hlau tsaus ntsuab cov tub rog yoov.
Siv electron microscopy, cov kws tshawb fawb pom tau hais tias cov pob txha amber muaj "zoo-preserved light-scattering exoskeleton nanostructures."
"Peb cov kev soj ntsuam tau pom zoo tias qee cov pob txha amber tuaj yeem khaws cov xim tib yam li cov kab uas tau tshwm sim thaum lawv muaj sia nyob li 99 lab xyoo dhau los," cov kws tshawb fawb tau sau tseg. pom nyob rau hauv extant cuckoo wasps. "
Fermin Koop yog ib tug neeg sau xov xwm los ntawm Buenos Aires, Argentina.Nws tuav MA hauv Ib puag ncig thiab kev txhim kho los ntawm University of Reading, UK, tshwj xeeb hauv kev sau xov xwm ib puag ncig thiab huab cua hloov pauv.