WordPress – How to identify which Template is being used

// Testing Purposes only
add_action('wp_footer', 'show_template');
function show_template(){
if ( is_user_logged_in() ) {
global $template;
print_r($template);

echo '
';
echo get_num_queries() . 'queries in ' . timer_stop(1) . ' seconds.';

}
}

Note, this is coded to only run for users logged in. Simply place in your child theme functions.php file.