i've got a question about theropod height and another about dromaeosaurids well years ago you gave me a hand with a school project i was working in by making this size chart well i managed to get the highest possible mark in that subject so that compensated for some weaker marks and i managed to enter university without much pressure so thanks again anyway i was recently surfing the web and i came across this image as you can see the animals that appear in it are the same as in the size chart you made however we can see some discrepances in their height so my question is is this reconstruction correct in this regard tyrannosaurids having longer leg bones that allosauroids and spinosaurids and the latter having a lower profile that other theropods is pretty common knowledge and longer leg bones mean more height but still the mounted skeleton of sue is not that much taller that mounted giganotosaurus if i recall correctly and the mount of spinosaurus is quite massive anyway about dromaeosaurs do you have any idea about the environment deinonychus and utahraptor lived in i ask mainly because of the whole feather density or oven presence in some cases it seems and after seeing how you reconstructed achillobator and the reasoning behind the ratite feathering you gave it i've been pondering how that could affect medium large dromaeosaurs in less arid climates in any case could i ask you a favour if you have the time and the inmediate means if yes remember the giant bird size chart could you add a velociraptor mongoliensis silouette to it if you can i mainly need it to driving a point straight home not like it is that needed the paper that describes the quill knobs on that genus is pretty good evidence for wings but still again if you have time in any case deinonychus' height would be slighty higher if it adopted a more natural position that the crouching or as so i see it correct me if needed one it is displaying in the chart also do you think aepyornis would be heavier that utahraptor seeing that the model for estimating weights was deemed somewhat flawed and that at least in the chart aepyornis has a larger body well yeah by the way i like how you classified oviraptorosaurs as an order of aves and deinonychosaurs as part of archaeopterygiformes it well makes sense that classification should get more standariced one tends to forget about those things when thinking in a cladistic way but that update would be something needed to change the overall image of those animals i may start writting them in that way well when i get my licenciature and start doing actual work and research in place of preparing exams well better that when if but i hope i do anyway keep up your good work i've been following your blog and i like what i read over there