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Re: clavacled theropods
> Theropods don't have clavicles as such, but some have furculae, which are
> thought to be the left and right clavicles fused into a unit. Furculae are
> definitely known in _Longisquama_, _Archaeopteryx_, _Oviraptor_, an unnamed
> theropod from the Morrison, and _Allosaurus_ (as yet unpublished reference).
> Thulborn also has identified furculae in tyrannosaurids. There may be other
> theropods with furculae, but that's a start, at least. Cladists would include
> all extant birds in the set of furculiferous theropods, of course.
What earlier dinosaur relatives have true clavicles?