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Re: Semi-lunate carpal block

In a message dated 97-07-31 20:23:07 EDT, jpoling@dinosauria.com (Jeff
Poling) writes:

<< I thought I read on the list that
 the difference between the "semi-lunate" carpal block in maniraptoriformes
 and maniraptors is that in maniraptors the bones of the block are fused,
 while in m.formes they are not.  Is this true? >>

If they're not fused ancestrally in maniraptoriformes, how can they form a
"carpal block"?