Abashakashatsi bavumbuye amabara nyayo y’itsinda ry’udukoko twafatiwe mu ibara ry’umuhondo muri Miyanimari mu myaka igera kuri miliyoni 99 ishize. Udukoko twa kera turimo inzige zo mu mazi n’udukoko, byose biza mu ibara ry’ubururu, umuhengeri n’icyatsi kibisi.
Kamere ikungahaye ku maso, ariko ibisigazwa by'ibinyabuzima ntibikunze kubika ibimenyetso by'ibara ry'umwimerere ry'ibinyabuzima. Nyamara, abahanga mu bya paleontology ubu barimo gushaka uburyo bwo guhitamo amabara mu bisigazwa byabitswe neza, byaba ari dinosaure n'ibikurura biguruka cyangwa inzoka za kera n'inyamabere.
Gusobanukirwa ibara ry'ibinyabuzima byazimye mu by'ukuri ni ingenzi cyane kuko bishobora kubwira abashakashatsi byinshi ku myitwarire y'inyamaswa. Urugero, ibara rishobora gukoreshwa mu gukurura inshuti cyangwa kuburira inyamaswa ziryana, ndetse no gufasha mu kugena ubushyuhe. Kwiga byinshi kuri byo bishobora no gufasha abashakashatsi kumenya byinshi ku rusobe rw'ibinyabuzima n'ibidukikije.
Muri ubu bushakashatsi bushya, itsinda ry’abashakashatsi bo mu Kigo cya Nanjing Institute of Jeology and Paleontology (NIGPAS) cyo mu Ishuri Rikuru ry’Ubumenyi ry’Abashinwa ryarebye ingero 35 z’umuhondo zari zirimo udukoko twabitswe neza. Ibisigazwa byabonetse mu kirombe cy’umuhondo mu majyaruguru ya Miyanimari.
...Injira muri ZME Newsletter kugira ngo ubone amakuru atangaje ya siyansi, ibintu bigezweho n'amakuru yihariye. Ntushobora kwibeshya ku banyamuryango barenga 40.000.
“Amber ni igiti cyo mu bwoko bwa Cretaceous, gifite imyaka igera kuri miliyoni 99, cyakomotse mu gihe cy’izahabu cya dinosaur,” umwanditsi mukuru Chenyan Cai yagize ati mu itangazo. “Muri make ni resin ikorwa n’ibiti bya kera bya conifer bikura mu ishyamba ry’inzitane. Ibimera n’inyamaswa byafatiwe muri resin nini birabikwa, bimwe mu buryo bufatika.”
Amabara mu bidukikije muri rusange agabanywa mu byiciro bitatu binini: ibara ry’ibinyabuzima, ibara ry’ibimera, n’amabara y’imiterere. Ibisigazwa by’ibimera bya amber byabonye amabara y’imiterere yabugenewe yagumanye akenshi aba akomeye kandi atangaje (harimo n’amabara y’icyuma) kandi akorwa n’imiterere y’urumuri ruto cyane igaragara ku mutwe, ku mubiri no ku maguru y’inyamaswa.
Abashakashatsi basukuye ibisigazwa by'ibinyabuzima bakoresheje umusenyi n'ifu y'ubutaka ya diatomaceous. Hari amber isya ikorwamo uduce duto cyane kugira ngo udukoko tugaragare neza, kandi matrix y'amber ikikije iba ibonerana cyane mu mucyo mwinshi. Amashusho ari muri ubwo bushakashatsi yahinduwe kugira ngo ahindure urumuri n'itandukaniro.
“Ubwoko bw’ibara ryabitswe mu mabuye y’agaciro yitwa ibara ry’imiterere,” Yanhong Pan, umwe mu banditsi b’ubushakashatsi, yagize ati mu itangazo. “Imiterere y’ibintu bito cyane ku buso ikwirakwiza uburebure bw’urumuri,” “itanga amabara akomeye cyane,” Pan yagize ati, “ubu buryo ni bwo butuma amabara menshi tuzi mu buzima bwacu bwa buri munsi.”
Mu bisigazwa byose by’ibinyabuzima, inziba zo mu bwoko bwa cuckoo ziratangaje cyane, zifite ibara ry’ubururu n’icyatsi kibisi, umuhondo n’umutuku, ibara ry’umukara n’icyatsi kibisi ku mutwe, mu gituza, mu nda no ku maguru. Nk’uko ubushakashatsi bubigaragaza, aya mabara ahuye neza n’inziba zo mu bwoko bwa cuckoo zikiriho muri iki gihe. Izindi nzibagiwe zirimo inziba z’ubururu n’umuhengeri n’inziba z’abasirikare z’icyatsi kibisi cyijimye.
Bakoresheje mikorosikope y'amashanyarazi, abashakashatsi bagaragaje ko ibisigazwa by'amabuye y'agaciro bifite "imiterere mito y'urumuri ikwirakwira mu magufwa y'ibinyabuzima."
Abanditsi b’ubushakashatsi banditse bati: “Ibyo twabonye bigaragaza cyane ko hari ibisigazwa by’ibinyabuzima by’umuhondo bishobora kugumana amabara amwe n’ayo udukoko twagaragaye igihe twari tukiriho mu myaka miliyoni 99 ishize.” Byongeye kandi, ibi byemezwa n’uko ibisigazwa by’ubururu bw’icyatsi kibisi bikunze kuboneka mu bisigazwa by’ibimera biriho.”
Fermin Koop ni umunyamakuru ukomoka i Buenos Aires, muri Arijantine. Afite impamyabumenyi y’icyiciro cya kabiri cya kaminuza mu bidukikije n’iterambere yakuye muri Kaminuza ya Reading, mu Bwongereza, yiganjemo itangazamakuru rishingiye ku bidukikije n’imihindagurikire y’ikirere.