diff --git a/src/ontology/bdso-edit.owl b/src/ontology/bdso-edit.owl
index aad94427..8e5cbdfb 100644
--- a/src/ontology/bdso-edit.owl
+++ b/src/ontology/bdso-edit.owl
@@ -46,6 +46,7 @@ Declaration(AnnotationProperty(<http://purl.obolibrary.org/obo/PCL_0010058>))
 Declaration(AnnotationProperty(<http://purl.obolibrary.org/obo/PCL_0010059>))
 Declaration(AnnotationProperty(<http://purl.obolibrary.org/obo/PCL_0010060>))
 Declaration(AnnotationProperty(<http://purl.obolibrary.org/obo/PCL_0010061>))
+Declaration(Class(<http://purl.obolibrary.org/obo/PCL_1000000>))
 
 ############################
 #   Object Properties
@@ -109,4 +110,18 @@ AnnotationAssertion(rdfs:label <http://purl.obolibrary.org/obo/PCL_0010060> "cel
 # Annotation Property: <http://purl.obolibrary.org/obo/PCL_0010061> (nuclei_count)
 AnnotationAssertion(rdfs:label <http://purl.obolibrary.org/obo/PCL_0010061> "nuclei_count")
 
+############################
+#   Classes
+############################
+
+# Class: <http://purl.obolibrary.org/obo/PCL_1000000> (L4 intratelencephalic projecting glutamatergic neuron of the primary motor cortex)
+
+AnnotationAssertion(Annotation(<http://www.geneontology.org/formats/oboInOwl#hasDbXref> "PMID:33184512") <http://purl.obolibrary.org/obo/IAO_0000115> <http://purl.obolibrary.org/obo/PCL_1000000> "An intratelencephalic-projecting glutamatergic neuron that is located in the boundary between L2/3 and L5 of the primary motor cortex. These cells have diverse morphologies with some pyramidal and some stellate cells.")
+AnnotationAssertion(dce:creator <http://purl.obolibrary.org/obo/PCL_1000000> <http://orcid.org/0000-0001-7258-9596>)
+AnnotationAssertion(<http://www.geneontology.org/formats/oboInOwl#hasDbXref> <http://purl.obolibrary.org/obo/PCL_1000000> "ILX:0770172")
+AnnotationAssertion(Annotation(<http://www.geneontology.org/formats/oboInOwl#hasDbXref> "PMID:25525751") rdfs:comment <http://purl.obolibrary.org/obo/PCL_1000000> "These cells likely corresponded to the quasi-L4 neurons described previously in the motor cortex.")
+AnnotationAssertion(rdfs:label <http://purl.obolibrary.org/obo/PCL_1000000> "L4 intratelencephalic projecting glutamatergic neuron of the primary motor cortex")
+SubClassOf(<http://purl.obolibrary.org/obo/PCL_1000000> <http://purl.obolibrary.org/obo/CL_4023040>)
+SubClassOf(<http://purl.obolibrary.org/obo/PCL_1000000> ObjectSomeValuesFrom(<http://purl.obolibrary.org/obo/RO_0002100> <http://purl.obolibrary.org/obo/UBERON_0005393>))
+
 )
\ No newline at end of file