cursor variables

I am trying to start to use cursor variables I believe i have declared properly but get the following error on this code:
I will be trying to pass the cursor with a table name


CREATE OR REPLACE PACKAGE archive_database AS

CURSOR get_tables(p_owner VARCHAR2) RETURN dba_tables%ROWTYPE;
CURSOR get_columns(p_table VARCHAR2) RETURN dba_tab_columns%ROWTYPE;
CURSOR get_tab_data IS REF CURSOR;
PROCEDURE select_data (v_owner VARCHAR2);
PROCEDURE get_data(alldata IN OUT get_tab_data, p_table VARCHAR2);

END archive_database;
/


LINE/COL ERROR
-------- -----------------------------------------------------------------
5/25 PLS-00103: Encountered the symbol "REF" when expecting one of the
following:
( select

cheers
suggs

The delaration for refcursor should be as follows:

type get_tab_data IS REF CURSOR;