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 PALEONTOLOGY don scutulatus, a name subsequently changed to Rhombopholis scutulata, the type specimen being an imperfect skeleton in the Warwick Museum. Professor Miall has expressed doubts as to the labyrinthodont nature of this specimen. Further evidence of the presence of labyrinthodonts in the Keuper of the county is afforded by footprints in the sandstone, which are com- monly known by the name of Chirotherium or Cbirosaurus, 1 although they were made in all probability by Mastodonsaurus, Labyrinthodon^ etc. In this connection it may be well to mention that these footprints were originally supposed to have been made by animals resembling huge frogs or toads ; and in old works on geology and palaeontology restorations of Labyrintbodon on this model are shown. Such restorations are however altogether erroneous, these ancient amphibians corresponding in general bodily form much more nearly with the salamanders of the present day. Of the remains of reptiles from the Keuper of Warwickshire the earliest described appear to be certain teeth from Coten End, Leamington and Warwick, which were named Cladyodon lloydi by Sir Richard Owen in 1841. Teeth from the same quarries subsequently examined by Huxley* were found to be very similar to others from Bristol described as Palceo- saurus cylindrodon, and were provisionally assigned to the same genus if not the same species. This reptile was evidently an early representa- tive of the Dinosauria, but the exact relationship of the animal indicated by the teeth for which the name Cladyodon was proposed must for the present remain uncertain. Other dinosaurians from the Warwickshire Trias include a species of the genus Thecodontosaurus (first described on the evidence of specimens from Bristol) and another of Zanclodon (Tera- tosaurus). But this does not exhaust the list of Triassic reptiles found in the county. In 1869 Huxley 3 stated that a peculiar reptile described by himself under the name of Hyperodapedon gordoni was represented in the quarries at Coten End, and in 1893 Mr. Brodie 4 announced the discovery of a nearly perfect jaw of the same creature at this locality. Hyperodapedon^ it may be mentioned, is a Triassic ally of the tuatera lizard (Sphenodon punctatus] of New Zealand, which is the sole living repre- sentative of the order Rhynchocephalia. In the extinct genus, of which remains are abundant at Maleri in Central India, the palate was covered with a number of longitudinal rows of stout conical teeth, between two of which worked the single row surmounting the lower jaw. Although apparently less numerous than in the corresponding for- mation of Leicestershire, remains of the two great groups of marine Secondary reptiles respectively known as ichthyosaurs and plesiosaurs occur in the Lower Lias of the county, nearly complete skeletons being met with from time to time. Of the ichthyosaurs, or the group in which the head is large, the neck short, and the bones of the paddles quadrangular, the species Ichthyosaurus intermedius and /. platyodon have been recorded from the neighbourhood of Stratford-on-Avon, and there may be others. 1 Quart. Journ. Geol. Soc. xvi. 278, xlix. 173. 2 Ibid. xxvi. 46 (1869). 3 Op. cit. * Ibid. xlix. 173, note. 31