diff --git a/meta/type-scope.json b/meta/type-scope.json
index bb8530e..5a5b4e1 100644
--- a/meta/type-scope.json
+++ b/meta/type-scope.json
@@ -6,6 +6,18 @@
       "types": "*",
       "note": "Generic over Temporal *: appends to any temporal type."
     },
+    "temporal_append_tsequence": {
+      "types": "*",
+      "note": "Generic over Temporal *: appends to any temporal type. Its bool expand parameter is no scope."
+    },
+    "temporal_merge": {
+      "types": "*",
+      "note": "Generic over Temporal *: merges any two temporal values of one type. Its trgeometry branch is no scope."
+    },
+    "temporal_merge_array": {
+      "types": "*",
+      "note": "Generic over Temporal *: merges an array of temporal values of one type. Its trgeometry branch is no scope."
+    },
     "temporal_at_values": {
       "types": "*",
       "note": "Generic over Temporal *: restricts any temporal type to a value set."
diff --git a/tests/test_typescope.py b/tests/test_typescope.py
index 7f4511f..c7596c0 100644
--- a/tests/test_typescope.py
+++ b/tests/test_typescope.py
@@ -180,6 +180,16 @@ def test_the_array_accessors_serve_every_temporal_type(self):
             self.assertTrue({'tint', 'tfloat', 'ttext', 'tgeompoint', 'tgeogpoint'} <= first,
                             f'{name} serves {sorted(first)}')
 
+    def test_append_and_merge_serve_every_temporal_type(self):
+        # as #test_the_array_accessors_serve_every_temporal_type: the bool expand parameter of
+        # temporal_append_tsequence and the trgeometry branch of temporal_merge read as scopes,
+        # keeping tbool and trgeometry alone
+        for name in ('temporal_append_tsequence', 'temporal_merge', 'temporal_merge_array'):
+            first = {s['args'][0].rstrip('[]')
+                     for s in self.fns[name].get('sqlSignatures') or ()}
+            self.assertTrue({'tbool', 'tint', 'tfloat', 'ttext', 'tgeompoint', 'tgeogpoint',
+                             'trgeometry'} <= first, f'{name} serves {sorted(first)}')
+
 
 if __name__ == '__main__':
     unittest.main()