120 ME. H. KYNASTON ON THE [May 1 894, 



10. On the Stratigraphicax, Lithological, and Paljsontological 

 Features of the Gosau Beds of the Gosau District, in the 

 Austrian Salzkammergut. By Herbert Kynaston, Esq., B.A., 

 Scholar of King's College, Cambridge. (Communicated by J. E. 

 Make, Esq., M.A., F.K.S., Sec.G.S. Bead December 20th, 

 1893.) 



Contents. 



Page 



I. Introduction 120 



§ 1. Prefatory Remarks 120 



§2. Bibliography 121 



§3. Situation and Physical Aspects of the Gosau Valley 123 



II. Distribution of the Beds: Stratigraphy of the Gosau District, and 



Comparison with other Areas 123 



III. Palaeontology of the Gosau Beds 134 



IV. Geological Horizon of the Gosau Beds 137 



V. Physical History of the Gosau Beds 147 



VI. Summary 149 



Map 126 



I. Introduction. 

 § 1. Prefatory Remarks. 



During the latter part of the summer of 1892, I was enabled by 

 means of a grant from the Worts Fund (Cambridge University) to 

 do some geological work in the Eastern Alps. My observations 

 during the seven weeks or so that I spent on the Continent were 

 confined to the Upper Triassic and Upper Cretaceous rocks of the 

 neighbourhood of Aussee, Altaussee, Hallstatt, and Gosau, in the 

 Austrian Salzkammergut, and more especially to the Cretaceous 

 rocks of Gosau ; and it is the remarkable formation here developed 

 that I propose to deal with in this paper. 



I am aware that the subject of the Gosau Beds is by no means a 

 new one, and that many eminent stratigraphists and palaeontologists, 

 whose researches have brought forth a copious literature and much 

 discussion, have been before me in the same field. With the 

 exception, however, of the remarkable researches of Murchison and 

 Sedgwick, little, if any, detailed work has been done on these beds 

 by English geologists. Furthermore, although the formation at 

 Gosau and other places in the Eastern Alps has been known for a 

 long time, yet its isolated position, peculiar stratigraphical relations, 

 and unique fauna have always been subjects of much discussion 

 amongst European geologists, and the question of the exact geo- 

 logical horizon of the beds and their palaeontological relations cannot 

 even yet be said to have been definitely settled. 



It is proposed, therefore, in the following pages to give a summary 

 of the results of the principal previous investigations on the strati- 

 graphy and palaeontology of the Gosau Beds, to give a full account 

 of my own observations and subsequent palaeontological work, to 



