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Re: Status of _Utahraptor_?



In a message dated 2/1/01 10:42:27 PM EST, Mickey_Mortimer@email.msn.com 
writes:

<< The lack of fused interdental plates or specializations of pedal digit II 
suggest Bagaraatan is not a dromaeosaur. >>

Bagaraatan does have fused interdental plates--or at least, a supradentary 
lamina. But it extends for only about half the length of the tooth row. 
Regarding the fragmentary pedal digits of Dromaeosaurus, they might belong to 
a different theropod (e.g., a juvenile tyrannosaurid) washed into the same 
deposit. I don't think they have a very definite association with the skull 
elements. What do Colbert & Russell 1969 say about them?