Index: trunk/resources/data/validator/deprecated.mapcss
===================================================================
--- trunk/resources/data/validator/deprecated.mapcss	(revision 18564)
+++ trunk/resources/data/validator/deprecated.mapcss	(revision 18633)
@@ -2402,5 +2402,5 @@
 }
 
-/* temporary URLs, can be exteded to other websites and other keys e.g. "url" or "website", #22397 */
+/* temporary URLs, can be extended to other websites and other keys e.g. "url" or "website", #22397 */
 *[image][image=~/^https:\/\/westnordost.de\/p\//] {
   throwWarning: tr("{0} with a temporary URL which may be outdated very soon", "{0.key}");
@@ -2411,3 +2411,11 @@
 }
 
+/* Replaced by archaeological_site, see #22561 */
+*[historic=archaeological_site][site_type] {
+  throwWarning: tr("{0} should be replaced with {1}", "{1.key}", "archaeological_site");
+  fixChangeKey: "site_type => archaeological_site";
+  assertMatch: "node historic=archaeological_site site_type=fortification";
+  assertNoMatch: "node historic=archaeological_site site_type2=fortification";
+}
+
 /* When tags are deprecated they should be added to ignoretags.cfg too. */