Dinosaur material from Uzbekistan is becoming a bit more available to the collector.   Most of the material being offered for sale are theropod teeth with the occasional claw, see my post from earlier this year. Sauropod material has yet to hit the market but my bet is that will change if there is a profit to be made.  A new paper that will soon be published identifies teeth from several countries in Central Asia including Uzbekistan.    The material shown below comes from th