Ofufuzawo adatsalira zotsalira zakale zomwe sizinadziwike zomwe zidapezeka mu 2006 m'dera lamakono la Northern Patagonia.
Cholengedwa chomwe chidapezeka chosadziwika chinali ndi miyendo ndipo chimatchedwa Najash rionegrina polemekeza njoka Nahash, yomwe imafotokozedwa m'Baibulo.
Malinga ndi kafukufukuyu, nyama zanyama zambiri padziko lapansi zidakhala zaka pafupifupi 100 miliyoni zapitazo.
Maumboni achilendo a cranium adadziwika, chifukwa ali ndi fupa lapadera kwambiri, osati achilendo kwa mitundu yoposa imodzi.
Ophunzira adazindikira izi mothandizidwa ndi tomography yapadera yotumizidwa.
Kuphatikiza apo, akatswiri adapeza kuti makolo akale a njoka zamakono anali ndi milomo yayikulu, komanso zazikulu kwambiri.
Mpaka pano, mdziko la sayansi, zimakhulupirira kuti oimira awa padziko lapansi anali ochepa komanso amakhala m'mabowo.
Kafukufuku wokhudza cholengedwa chakale, chomwe adatchedwa njoka ya mu Bayibulo, adawonetsa kuti miyendo yakumbuyo idalipo mumtunduwu kwa nthawi yayitali.