60p files with 23.98 filebase

[#1]

In premiere when I import all my clips into a timeline I have a mix of 60p files and 23.98 files. All files are from C300mkii with 23.98 frame base. Is there anyway to sort the 60p files in the media browser so I don't import these on the timeline? Basically when I import all the media onto the timeline so of the 60p files overlap the 23.98 or sometimes completely overwrite them due to their length. I'd like to just import my real-time clips only into a timeline.