EXTINCT WHALES AND WOMBATS 299 
“ Bones of the Basilosaurus have been found in many parts of 
Alabama and South Carolina, in greensand belonging to a very 
ancient Tertiary formation ; hundreds of vertebre, bones of the 
extremities, portions of the cranium and of the jaws with teeth 
have from time to time been collected. Remains of species of 
the same genus have also been found near Bordeaux and in 
Malta. 
“ Professor Owen has shown that the original animal was a 
marine cetacean, holding an intermediate position between the 
Cachalots and the herbivorous species. It must have attained 
a length equal to that of the largest living whales, for a series 
Fic. 110.—Head of Sqwalodon, from Miocene strata, Bavaria. 
of vertebrae was observed in situ that extended in a line sixty-five 
HOChe. Sa: : 
“GIDEON ALGERNON MANTELL. 
**19, Chester Square, Pimlico, Oct. 31, 1848.” 
Squalodon (see Fig. 110) represents another extinct genus of 
cetaceans, of which very little is known beyond the teeth and 
skull. It was formerly classified with Zeuglodon, but its skull is 
more like that of a dolphin, although the teeth are somewhat like 
those of the former. Teeth and fragments of skulls of Squalodon 
have been frequently found in the marine European deposits of 
Miocene age—especially in the Vienna basin, many parts of 
France, and the Crag formations of Antwerp and of Suffolk; also 
