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Re: Velociraptorinae & Dromaeosaurinae (Sorry , I don?t know where the subject went in previous mess



(the same again, whit subject this time...)

Thanks! It really helps!
But, what about Deinonychus? Are its teeth known?
And Saurornitholestes? Or theese are _incertae sedis_?

All the best,
Filip Milovanovic


----- Original Message -----
From: <soto@adinet.com.uy>
To: <fmpaleo@verat.net>
Sent: Wednesday, February 02, 2005 8:15 PM
Subject: Re: Velociraptorinae & Dromaeosaurinae


> Dear Filip,
> In the traditional sense, velociraptorine teeth are those which denticles
> greatly differ in size (i.e. the posterior ones are bigger). Furthermore,
> the denticles are hooked and points toward the tip of the tooth. The mesial
> (or anterior) carina follows the midline of the tooth.
> In dromaeosaurines, the anterior and posterior denticles are subequal. The
> denticles are chisel-like. Finally, the mesial (or anteior) carina twists
> lingually not far from the tip of the tooth.
> See Currie et al. (1990) in "Dinosaur Systematics: Perspectives and
Approaches",
> pp. 107-125" for illustrations, and Currie (1995) in Journal of Vertebrate
> Paleontology 15(3):576-591 for other characters.
> However, Senter et al. (2004) redefined both subfamilies. It appears now
> that bigger posterior denticles and hooked denticles diagnoses (if I recall
> correctly) the clade Microraptoria + Dromaeosauridae. Within
Dromaeosauridae,
> Velociraptorinae sensu Senter et al. includes only Velociraptor. Within
> Dromaeosaurinae, Dromaeosaurus and Utahraptor have subequal denticles that
> are not hooked, wich may constitutes reversals. Senter et al. (2004) don't
> even mention the lingual twist of the anterior carina.
> Hope this helps.
> Best,
>
> Matias Soto
>