The Brett Booth Dinosaur Blog, dealing with pointy teeth on bitey things.
Saturday, February 13, 2010
Dilophosaurus a Spinosaur?
Years ago Gregory S. Paul put forth the idea that the Spinosaurs evolved from animals like Dilophosaurus. They do look a lot alike, but current thinking has the spinosaurs evolving from animals similar to Torvosaurus (I'm saying Torvosaurs since I have no idea what's going on with the megalosaurs right now.) But could the similar look be the result of convergent evolution? (animals evolving similar appearance because they preform the same function, like dolphins and icthyosaurs, or Thylacines and the dog) Were Dilophosaurs also fish eaters? I have no real idea but a current study that tests isotopes in teeth might be the answer. They finally published a study on the teeth of spinosaurs that shows they were more aquatic in there habitats than other theropods, or at least most other theropods.
So does the similar look of Dilophosaurs hint at a Spinosaur like life style? Most likely not, they appear to just be ramped up Coelophysids. But one never knows, maybe we'll find a Dilophosaur with fish in it's belly like the British Baryonyx:)
For more information on swimming Spinosaurs go here!
Brett is a comic book artist currently working on nothing he can mention, damn it! He also draws dinosaurs! He likes to talk about science and evolution if you don't want to here about that stuff, tuff cookies;)
If you would like to use my images on your web site, please e-mail me. (brettbooth at gmail dot com) I usually grant permission for non-commercial uses but I do require that you provide a link back to me. If you are a scientist, or represent a museum or educational institution, one time print use of dinosaur images is very low cost and sometimes free, please inquire.
I am happy to draw original paleo artwork for papers, articles and the like. I'm happy to do these for very reasonable fee's and in some cases I'll even wave that. So feel free to ask.
I will no longer doing comic/anthro character commissions. See other blog.