diff --git a/python-spec/src/somacore/data.py b/python-spec/src/somacore/data.py
index 4718dc9..0f6088c 100644
--- a/python-spec/src/somacore/data.py
+++ b/python-spec/src/somacore/data.py
@@ -38,8 +38,8 @@ def create(
         uri: str,
         *,
         schema: pa.Schema,
-        domain: Sequence[tuple[Any, Any] | None],
         index_column_names: Sequence[str] = (options.SOMA_JOINID,),
+        domain: Sequence[tuple[Any, Any] | None],
         platform_config: options.PlatformConfig | None = None,
         context: Any | None = None,
     ) -> Self:
@@ -68,8 +68,8 @@ def create(
                 A sequence of tuples specifying the domain of each index
                 column. Each tuple must be a pair consisting of the minimum
                 and maximum values storable in the index column. This sequence
-                must have the same length as ``index_column_names``. Use ``None`` for string
-                index columns when the implementation does not support string domains.
+                must have the same length as ``index_column_names``. Use ``None`` for string
+                index columns when the implementation does not support string domains.
             platform_config: platform-specific configuration; keys are SOMA
                 implementation names.
 
diff --git a/python-spec/src/somacore/spatial.py b/python-spec/src/somacore/spatial.py
index 099aaa4..ea97187 100644
--- a/python-spec/src/somacore/spatial.py
+++ b/python-spec/src/somacore/spatial.py
@@ -34,11 +34,11 @@ def create(
         uri: str,
         *,
         schema: pa.Schema,
-        domain: Sequence[tuple[Any, Any]],
         coordinate_space: Sequence[str] | coordinates.CoordinateSpace = (
             "x",
             "y",
         ),
+        domain: Sequence[tuple[Any, Any]],
         platform_config: options.PlatformConfig | None = None,
         context: Any | None = None,
     ) -> Self:
@@ -253,8 +253,8 @@ def create(
         uri: str,
         *,
         schema: pa.Schema,
-        domain: Sequence[tuple[Any, Any] | None],
         coordinate_space: Sequence[str] | coordinates.CoordinateSpace = ("x", "y"),
+        domain: Sequence[tuple[Any, Any] | None],
         platform_config: options.PlatformConfig | None = None,
         context: Any | None = None,
     ) -> Self: