Kakanaut Formation
The Kakanaut Formation is a geological formation in Siberia , whose strata date back to the Late Cretaceous ( Maastrichtian ) . 
<triplet> Kakanaut Formation <subj> formation <obj> instance of <triplet> Late Cretaceous <subj> Maastrichtian <obj> has part <triplet> Maastrichtian <subj> Late Cretaceous <obj> part of