I have pages like domain.com/article that list all the articles or all the blog posts. I guess they were created by the pathauto module because the generate index aliases check-box was selected, but I am not sure. These pages are orphaned and I'd like to delete them. The pages do not have the usual View/Edit/Track menu as other pages do. How do I find all of such pages? and the most important question, how do I delete all of them?