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Thanks! It really helps!
But, what about Deinonychus? Are its teeth known?
And Saurornitholestes? Or theese are _incertae sedis_?
All the best,
----- Original Message -----
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
> 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
> 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.
> Matias Soto