the 



GEOLOGICAL MAGAZINE. 



NEW SERIES. DECADE IV. VOL. III. 



No. I.— JANUARY, 1896. 



OZR-XO-XItT.^ILj AETICLES. 



I. — Restoration of some European Dinosaurs, with Suggestions 

 as to their Place among the Reptilia. 1 



By Professor 0. C. Marsh, M.A., Ph.D., LL.D., F.G.S.; 

 of Yale College, New Haven, U.S. 



(PLATES I-IV.) 



FOR several yeai-s I have been engaged in investigating the 

 Dinosaurs of North America, where these extinct reptiles were 

 very abundant during the whole of Mesozoic time. The results of 

 my study have been published from time to time, and I have already 

 had the honour of presenting some of these to the British Association. 

 In carrying out this investigation so as to include the whole group 

 of Dinosaurs, wherever found, and bringing all under one system of 

 classification, it has been necessary for me to study the remains 

 discovered in Europe, and I have made several visits to this country 

 for that purpose. 



In comparing the forms known from the two continents, certain 

 important differences, as well as some marked resemblances between 

 the two, have been observed, and placed on record. In concluding 

 my investigations of the North American forms, I have fortunately 

 been able to make restorations of the skeletons of quite a number of 

 very complete type specimens, and this has proved a most instructive 

 means of comparing those from different horizons, and of different 

 groups, among the known Dinosauria of America. 



The success of this plan rendered it very desirable to extend it, 

 if possible, to the best-known forms of European Dinosaurs. This 

 I have been enabled to do in a few instances, and the main object 

 of the present paper is to lay these latest results before you. 



In approaching the subject of European Dinosaurs, and especially 

 those of England, where the study of the group first began, I am 

 well aware that I am on delicate ground, since many and various 

 opinions have been expressed in regard to the nature of the remains 

 here discovered, and particularly as to the form and appearance 

 during life of the animals they represent. I may, perhaps, be 

 permitted, in this connection, to say, what has often occurred to 

 me, that the Dinosaurs seem to have been rather unfortunate, and 



1 Abstract of paper read before Section C, British Association for the Advance- 

 ment of Science, Ipswich, September 14th, 1895. 



DECADE IV. — VOL. III. — NO. I. . 1 



