Blastoid stem ?

[Rockwood]

Beach gravel find.

[abyssunder]

If it is an echinoderm such as crinoid, cystoid or blastoid, the lateral 'branches' (as shown in the first picture) might have a decreasing diametrical parameter from the proximal to the distal end of the attachment to the column, not inversed; so I think, that the lateral segments could not belong to the morphology of the same specimen , which not means that the central one couldn't be an echinoderm stem, but all they might be something else, like Cornulites, for example. (on the lower-right side of the matrix it looks to be something like a shell fragment, or maybe I'm wrong). What's sure, the specimen is hardly eroded, making it difficult to a proper ID.