diff --git a/src/patterns/data/default/length_along_axis.tsv b/src/patterns/data/default/length_along_axis.tsv
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+++ b/src/patterns/data/default/length_along_axis.tsv
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+defined_class	defined_class_name	element	element_name	axis	axis_name	taxa	taxa_name	exact_synonyms	xrefs  def_ref
+OBA:2030003  pelvis length UBERON:0007830  pelvic girdle bone/zone BSPO:0000015  proximal-distal axis           ISBN:9780873659505
diff --git a/src/patterns/dosdp-patterns/length_along_axis.yaml b/src/patterns/dosdp-patterns/length_along_axis.yaml
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+++ b/src/patterns/dosdp-patterns/length_along_axis.yaml
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+---
+pattern_name: length_along_axis
+
+pattern_iri: http://purl.obolibrary.org/obo/oba/patterns/length_along_axis.yaml
+
+description: "A length trait that is the line along an axis of an anatomical entity."
+
+#  examples:
+#    - http://purl.obolibrary.org/obo/FOVT_0001308  # canine tooth medial-lateral diameter
+#    - http://purl.obolibrary.org/obo/FOVT_0001080  # calcaneous proximal breadth (synonym: calcaneous proximal length medial-lateral)
+
+contributors:
+  - https://orcid.org/0000-0002-7073-9172  # David Osumi-Sutherland
+  - https://orcid.org/0000-0001-8314-2140  # Ray Stefancsik
+  - https://orcid.org/0000-0002-7356-1779  # Nicolas Matentzoglu
+  - https://orcid.org/0000-0003-2699-3066  # Meghan A. Balk
+
+classes:
+  anatomical_entity: UBERON:0001062
+  length: PATO:0000122
+  anatomical_axis: BSPO:0000010
+  taxon: OBI:0100026
+  trait_term: PATO:0000051
+
+relations:
+  characteristic_of: RO:0000052
+  part_of: BFO:0000050
+
+annotationProperties:
+  related_synonym: oio:hasRelatedSynonym
+  xref: oio:hasDbXref
+  measured_in_taxon: xsd:string
+  not_measured_in_taxon: xsd:string
+  comment: rdfs:comment
+
+data_list_vars:
+  def_ref: "'xref'"  # reference(s) to the source(s) of definition
+
+vars:
+  element: 'anatomical_entity'
+  axis: 'anatomical_axis'
+  size_trait: 'trait_term'
+  fovt: "xsd:string"  # FOVT id
+  def_ref: "xsd:string"
+  taxa: "taxon"
+  your_comments: "xsd:string"  # comments, clarifications for users
+  your_synonym: "xsd:string" #synonym for other terms researchers use for measurement
+  position: "xsd:string" #lateral, medial, etc.
+  syn_ref: "xsd:string"
+
+name:
+  text: "%s %s length" #e.g., humerus length
+  vars:
+    - element
+    - position
+
+annotations:
+  - annotationProperty: related_synonym
+    text: "%s"
+    vars:
+      - your_synonym
+    annotations:
+      -annotationProperty: xref
+        value: syn_ref
+  - annotationProperty: xref
+    text: "FOVT:%s"  # give FOVT id here
+    vars:
+      - fovt
+  - annotationProperty: measured_in_taxon
+    text: "%s"
+    vars:
+      - taxa
+  - annotationProperty: not_measured_in_taxon
+    text: "%s"
+    vars:
+      - taxa
+
+  - annotationProperty: comment
+    text: "%s"
+    vars:
+      - your_comments
+
+def:
+  text: "The length of a %s along the %s."
+  vars:
+    - element
+    - axis
+  annotations:
+    - annotationProperty: xref
+      value: def_ref
+
+equivalentTo:
+  text: "'length' and ('characteristic_of' some ('part_of' some %s))"
+  # if part of a bone [e.g., 'distalmost' ('part of' some humerus)]
+  # NOTE: Everything is part of itself.
+  vars:
+    - element
+
+logical_axioms:
+  - axiom_type: subClassOf
+    text: "%s"
+    vars:
+      - size_trait