688 REPORT— 1895. 



Beside the four p-enera here represented, no other European Dinosaurs at pre- 

 sent known are sufficiently well preserved to admit of accurate restorations of the 

 skeleton. This is true, moreover, of the Dinosaurian remains from other parts of 

 the world outside of North America. 



To present a comprehensive view of the Dinosaurs, so far as now known, I have 

 prepared the plate exhibited, which gives restorations of the twelve best-known 

 types, as I have thus far been able to reconstruct them. Of these twelve forms, eight 

 are from America: Ayichhaurus, a small carnivorous type from the Trias; Bronto- 

 saurus, Camptoscairus, Laosaurus, and Stegomurus, all herbivorous, and the carni- 

 vorous Ceratosaurus, from the Jurassic ; with Cktosaurus and Triceratops, her- 

 bivores from the Cretaceous. These American forms, with the four from Europe 

 already shown to you, complete the series represented on the chart exhibiU'd. 

 They form an instructive group of the remarkable reptiles known as Dinosauria. 



The geological positions of Compsognathu^ and of Scelidosaurus are fully deter- 

 mined, but that of Hi/psilophodan and Iguanodon is not so clear. The latter are 

 found in the so-called Wealden, but just what the Wealden is I have not been able 

 to determine from the authorities I have consulted. The Cretaceous age of these 

 deposits appears to be taken for granted here, but the evidence as it now stands 

 seems to me to point rather to the upper Jurassic as their true position. If I 

 should find the vertebrate fossils now known from your Wealden in the Rocky 

 Mountains, where I have collected many corresponding forms, I should certainly 

 call them Jurassic, and have good reason for so doing. Moreover, after visiting 

 typical Wealden localities here and on the Continent, I can still see no reason for 

 doing otherwise so far as the vertebrate fossils are concerned, and iu such fresh- 

 water deposits their evidence should be conclusive. I have already called attention 

 to this question of the age of the Wealden, and do so again, as I believe it worthy 

 of a careful reconsideration by English geologists. 



Report on the Investigation of the Locality where the Cetiosaurus 

 Remains in tlie Oxford Museum tvere found. — See Reports, p. 40.3. 



3. Preliminary Notice of an Exposure of Rhatic Beds, near East Leake, 

 Nottinghamshire. By Montagu Browne, F.G.S., F.Z.S. (Fourth 

 Contribution to Rhcetic Geology.) 



On the confines of Leicestershire and Nottinghamshire, near East Leake it he 

 latter county, the extension of the Manchester, Sheffield, and Lincolnshire Railway 

 has lately exposed an interesting section by the tunnel, Avhich cuts through the 

 White Hills, under the high road, and is bounded on the west by the coppice 

 called the ' Devil's Garden,' ' which is near the end of a westerly extension or pro- 

 montory of the Liassic with Rhaetic beds. 



The ordinary appearance of Midland exposures is here exhibited, and many of 

 the beds are homotaxial, both by lithology and contained fossils, with those of 

 exposures so remote as Wigston in Leicestershire, Westbury-on-Severn, Pylle Hill 

 al Uristol, and Watchet in Somersetshire. As in these exposures, there is no 

 actual or massive bone- bed as at Aust, &c., although, most curiously, one piece — 

 and one only, identical with the Aust breccia — was picked up at the ' tip.' The 

 usual minerals are present in the shales and stone, viz., .'elenite, iron pyrites, 

 oxides and peroxides of iron, and galena sparingly. The fossils are interesting, not 

 only as supplementing those previous!}' alluded to by the writer in former contri- 

 butions,^ but as exhibiting some rare forms not previou.sly recorded for Britain, 

 as given in the following list: — 



' This ancient and singular appellation is suggested by the writer as probably due 

 to the exposure of the black shales here in digging, the surroundings being a wide 

 area of Keuper red marls. 



^ British Association Reports, 1891-2-4. 



