from The Century Dictionary.
- noun A genus of fossil chimæras or selachian fishes of the order Holocephali, having a depressed or elongated trunk, the head produced in a long, slender snout on which there is a prehensile spine in the males, tapering tail, and calcified vertebral rings. Specimens of S. polyspondyla occur as nearly complete skeletons in the Lower Lias of Lyme-Regis, England.
Sorry, no etymologies found.
She unearthed a plesiosaurus in 1823, a pterodactyl in 1828 and a squaloraja (a transition fish, between sharks and rays) in 1829.