User blog comment:Commandosaur/This is for fun!/@comment-26125097-20150720081820

AND it is not all dinosaurs. its prehistoric mammals, birds and archeology too. and a bit of geology/volcanology, because of the volcanic rock, ancient rock, ash, fossils, permafrost and amber. and the best is the sifter, because you can now GET RID OF DIRT!!!!!!!!!!!!!!!!!! :)