diff --git a/specifyweb/specify/migrations/0007_tectonic_ranks.py b/specifyweb/specify/migrations/0007_tectonic_ranks.py
index c861cb5f6b2..73c93fc98e5 100644
--- a/specifyweb/specify/migrations/0007_tectonic_ranks.py
+++ b/specifyweb/specify/migrations/0007_tectonic_ranks.py
@@ -55,12 +55,21 @@ def create_default_tectonic_ranks(apps):
 
 def revert_default_tectonic_ranks(apps, schema_editor):
     TectonicUnit = apps.get_model('specify', 'TectonicUnit')
+    TectonicUnitTreeDefItem = apps.get_model('specify', 'TectonicUnitTreeDefItem')
     TectonicTreeDef = apps.get_model('specify', 'TectonicUnitTreeDef')
     Discipline = apps.get_model('specify', 'Discipline')
 
     for discipline in Discipline.objects.all():
-        tectonic_tree_def = TectonicTreeDef.objects.filter(name="Tectonic Unit", discipline=discipline)
-        if tectonic_tree_def:
+        tectonic_tree_defs = TectonicTreeDef.objects.filter(name="Tectonic Unit", discipline=discipline)
+
+        for tectonic_tree_def in tectonic_tree_defs:
+            tectonic_unit_tree_def_items = TectonicUnitTreeDefItem.objects.filter(treedef=tectonic_tree_def).order_by('-id')
+
+            for item in tectonic_unit_tree_def_items:
+                TectonicUnit.objects.filter(definitionitem=item).delete()
+
+                item.delete()
+
             tectonic_tree_def.delete()
 
 def create_root_tectonic_node(apps): 
@@ -93,6 +102,7 @@ def create_root_tectonic_node(apps):
 
 def revert_create_root_tectonic_node(apps, schema_editor):
     TectonicUnit = apps.get_model('specify', 'TectonicUnit')
+    TectonicUnitTreeDefItem = apps.get_model('specify', 'TectonicUnitTreeDefItem')
     TectonicTreeDef = apps.get_model('specify', 'TectonicUnitTreeDef')
     Discipline = apps.get_model('specify', 'Discipline')
 
@@ -100,6 +110,7 @@ def revert_create_root_tectonic_node(apps, schema_editor):
         tectonic_tree_def = TectonicTreeDef.objects.filter(name="Tectonic Unit", discipline=discipline).first()
         
         if tectonic_tree_def:
+            TectonicUnitTreeDefItem.objects.filter(treedef=tectonic_tree_def).delete()
             TectonicUnit.objects.filter(
                 name="Root"
             ).delete()
@@ -116,7 +127,7 @@ def consolidated_python_django_migration_operations(apps, schema_editor):
 
     def revert_cosolidated_python_django_migration_operations(apps, schema_editor):
         revert_default_tectonic_ranks(apps, schema_editor)
-        revert_create_root_tectonic_node(apps)
+        revert_create_root_tectonic_node(apps, schema_editor)
     
     operations = [
         migrations.RunPython(consolidated_python_django_migration_operations, revert_cosolidated_python_django_migration_operations, atomic=True),