diff --git a/.github/workflows/reviewers.yml b/.github/workflows/reviewers.yml
new file mode 100644
index 000000000..2ae5e3514
--- /dev/null
+++ b/.github/workflows/reviewers.yml
@@ -0,0 +1,47 @@
+name: Assign Reviewers for Uberon
+
+on:
+  pull_request:
+    types: [opened, synchronize]
+    paths:
+      - src/ontology/uberon-edit.obo
+
+jobs:
+  assign-reviewer:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0  # Fetch the entire history for all branches
+      
+      - name: Fetch base branch
+        run: |
+          git fetch origin ${{ github.base_ref }}  # Fetch base branch explicitly
+      
+      - name: Check if equivalent class axiom was edited
+        id: check_intersection_of
+        run: |
+          git diff origin/${{ github.base_ref }}...HEAD -- src/ontology/uberon-edit.obo > diff.txt
+          if grep -E '^(-|\+)intersection_of:' diff.txt; then
+            echo "intersection_of_found=true" >> $GITHUB_ENV
+          else
+            echo "intersection_of_found=false" >> $GITHUB_ENV
+          fi
+
+      - name: Assign reviewer
+        if: env.intersection_of_found == 'true'
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          gh api repos/${{ github.repository }}/pulls/${{ github.event.pull_request.number }}/requested_reviewers \
+            --method POST \
+            --field reviewers[]=cmungall
+
+      - name: Block PR by requesting changes
+        if: env.intersection_of_found == 'true'
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          gh pr review ${{ github.event.pull_request.number }} --request-changes --body "Changes detected in \`src/ontology/uberon-edit.obo\` involving \`intersection_of\`. Review by specific Uberon Core Team member is required."
diff --git a/src/ontology/uberon-edit.obo b/src/ontology/uberon-edit.obo
index 43273e08a..134d004f9 100644
--- a/src/ontology/uberon-edit.obo
+++ b/src/ontology/uberon-edit.obo
@@ -224694,6 +224694,14 @@ relationship: dc-contributor https://orcid.org/0000-0002-4341-3265
 relationship: dc-contributor https://orcid.org/0000-0003-2804-127X ! Sanjay Jain
 property_value: dcterms-date "2024-08-28T16:10:50Z" xsd:dateTime
 
+[Term]
+id: UBERON:8700000
+name: aorta-gonad-mesonephros
+def: "A transient organ in the developing embryo composed of the dorsal aorta, developing gonads, and embryonic kidney. This structure is located in the embryonic mesoderm and serves as the primary site for the generation of definitive hematopoietic stem cells." [PMID:25686881, PMID:25749005, PMID:31813624]
+is_a: UBERON:0002050 ! embryonic structure
+relationship: dc-contributor https://orcid.org/0009-0005-7919-4905
+property_value: dcterms-date "2024-10-25T08:42:34Z" xsd:dateTime
+
 [Term]
 id: UBERON:8700001
 name: follicle associated epithelium
@@ -224703,6 +224711,15 @@ is_a: UBERON:0004693 ! Peyer's patch epithelium
 relationship: dc-contributor https://orcid.org/0009-0005-7919-4905
 property_value: dcterms-date "2024-11-07T11:44:27Z" xsd:dateTime
 
+[Term]
+id: UBERON:8700002
+name: stratum spinosum of esophageal epithelium
+def: "The second deepest layer of the stratified squamous epithelium lining the esophagus, positioned directly above the stratum basale. It consists of multiple layers of keratinocytes connected by strong intercellular junctions called desmosomes, giving the cells a characteristic \"spiny\" appearance. This layer provides structural support, contributes to the epithelial barrier function, and serves as a transitional zone for keratinocytes migrating towards the luminal surface, playing a crucial role in maintaining the integrity and protective properties of the esophageal lining." [PMID:21126700, PMID:26019440]
+is_a: UBERON:0010304 ! non-keratinized stratified squamous epithelium
+relationship: dc-contributor https://orcid.org/0009-0005-7919-4905
+relationship: part_of UBERON:0001043 ! esophagus
+property_value: dcterms-date "2024-11-14T15:00:21Z" xsd:dateTime
+
 [Term]
 id: UBERON:8850000
 name: lumen of pulmonary alveolus
diff --git a/src/ontology/uberon-idranges.owl b/src/ontology/uberon-idranges.owl
index 2dd215b32..8985f3707 100644
--- a/src/ontology/uberon-idranges.owl
+++ b/src/ontology/uberon-idranges.owl
@@ -261,4 +261,10 @@ Datatype: idrange:35
     Annotations:
         allocatedto: "Tiago Lubiana"
     EquivalentTo:
-        xsd:integer[>= 8900000, <= 8909999]
\ No newline at end of file
+        xsd:integer[>= 8900000, <= 8909999]
+
+Datatype: idrange:40
+    Annotations:
+        allocatedto: "NDI Cloud"
+    EquivalentTo:
+        xsd:integer[>= 8910000, <= 8919999]