Richard Owen

“ The supratemporal vacuities (T) are relatively larger than in Goniopholis. The intervening tract of the parietal (7) , more canaliculate than in the larger species, is divided by a mid ridge in two of the cranial specimens, and partially so in the more complete skull, fig. 1. No palpebral ossicle is preserved in the orbit, o; the pointed ends of the nasals are produced so as to divide the outer nostril into two (fig. 1, n, n) , as in some specimens of Crocodilus niger; were this a character of generic value it might unite Theriosuchus with Halcrosia, Gray [14] . ”

“ Theriosuchus approaches, like Goniopholis, nearer to the type of the broad-faced Alligators in the proportion of the antorbital part of the skull (fig. 1, o, n) ; but the dentition is more modified than in any other known Crocodile, recent or extinct, and approaches nearer to that which characterizes the Theriodont order of Triassic Reptilia [11] .
The premaxillary teeth, five in number in each bone, are small; the three middle ones subequal, the first and fifth smaller; the maxillary teeth are divisible into laniaries (fig. 3, l) and carnassials or trenchant molars (ib. m) . ”

“ The first maxillary tooth is small, the second and third gain quickly in size, the latter (fig. 5, a) assuming the character of a canine; the fourth tooth (ib. b, and fig. 6, b) is a still larger canine; the fifth (fig. 6, c) and sixth (d) decrease in size somewhat suddenly, but in length rather than breadth of crown, and terminate the series projecting from the convex part of the alveolar border of the maxillary; the tooth c or d may be said to terminate the laniary series. Beyond d the teeth lose length and slightly gain in breadth ”

“ Comparée,' 8vo, tome iv. (1805) , p. 284. "Les ouvertures internes des narines sont très en arrière dans cet animal, contre l'ordinaire des autres reptiles," which other reptiles include the Crocodiles not procœlian or Neozoic. ”