Zach Miller at When Pigs Fly Returns has offered up a couple of original diagnoses of dinosaur species to be guessed at, here and here. So far I've gotten him on both of them, so I thought it only fair to offer my own up in return. So, Zach, anyone, can you identify what beasty made its debut under these words:
The vertebrae, and the bones of the limbs and of the feet, are so much like the corresponding parts of the typical Stegosaurus from the Jurassic, that it would be difficult to separate the two when in fragmentary condition, as are most of those from the later formation. The latter forms, however, are of larger size, and nearly all the bones have a peculiar rugosity, much less marked in the Jurassic species. In the form here described, this feature is very conspicuous, and marks almost every known part of the skeleton...
The top of the skull... is thick and massive, and strongly rugose.
This skull as a whole must have had at least fifty times the weight of the skull of the largest Sauropoda known, and this fact will give, some idea of the appearance of this reptile when alive.
In the interests of full disclosure, I've omitted a paragraph or two there, but only because if I had included the missing section it would have all been too easy. And if I'm to be labelled "a right bastard", then I feel that I must do what I can to maintain the honorific.
Does expression of the toxA operon depend on ToxT as well as ToxA?
2 days ago in RRResearch