Your Bitbucket wiki's support for the Creole syntax is fully compatible with the Creole 1.0 specification. For reference, see this page from WikiCreole and this page from Wikipedia (which includes table syntax).
Bitbucket macros for Creole
Bitbucket wikis support Markdown, Creole, reStructuredText, and Textile syntax; The Bitbucket macros work only in wikis that use the Creole markup language. The macro format is a single keyword surrounded by bracket characters:
Comments and messages all use Markdown syntax. There is special Bitbucket markup that you can use to link to Bitbucket objects from comments and messages.
Creoleparser from Google
Creoleparser page from Google (Bitbucket's Creole engine) lists some available additional elements:
|Bitbucket supports these additional elements||Elements Bitbucket does not support|