Note the word "lineage". That would include the dinosaurs that were ancestors of birds. Birds are dinosaurs, so reword the statement as > the dinosaurs had spl

Note the word "lineage". That would include the dinosaurs that were ancestors of birds. Birds are dinosaurs, so reword the statement as > the dinosaurs had split from crocodiles Birds and crocodiles are both archosaurs (which includes all dinosaurs as well as crocodiles) and are each others' closest living relatives.