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Is Chasmosaurus irvinensis (looks quite nice, but WHERE ARE THE BROW
HORNS??) recognised as a valid species? What features are there to prevent
it from being recognised as being an atypical C. belli or C. russeli?
Is Chasmosaurus canadensis still recognised or has it been officially
synonymised with C. belli?
Just what is Antarctosaurus? Is it a titanosaur, or is it (as i read
somewhere else) a diplodocimorph?
By the way, did Titanosaur heads vary that much? I know that sauropod skulls
are exceedingly rare, but I have seen many restorations of them with
squarish, camarasaur-like heads, while the recent finds of Rapetosaurus and
Nemegtosaurus seem to show otherwise. What is the consensus, folks? Did some
titanosaur families have square heads while others had slender skulls? Or
did all of them convergently evolve a nice diplodocid-like head?
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