unveiling ancient secrets petrified dinosaur eggs unearthed in remarkable nest excavation

dinosaur eggs petrified fossil nest excavation paleontology prehistoric discovery dig site geological formation rock paleontological eggshell life geology scientific research archaeology natural history museum exhibit reptiles mesozoic jurassic cretaceous paleozoic hunting wonder ancient artifact historical earth science time egg expedition era record reproduction extinct species conservation paleoenvironment stratigraphy paleoecology sedimentary behavior evolutionary biology world archaeological wonders