144 aiK. h. kynaston on the [May 1894, 



If we endeavoured to correlate the Gosau Beds with English Cre- 

 taceous zones by a direct comparison of their fauna with English 

 Upper Cretaceous faunas, we should find a rather difficult task 

 awaiting us. There are very few fossils common both to the Gosau 

 Beds and the English Upper Cretaceous rocks ; and those Gosau 

 species which are found in England are, as a rule, not confined to 

 any particular horizon, but frequently have a fairly extensive dis- 

 tribution in the Cretaceous system. 



From Murchison's paper, x as we have already pointed out, we 

 may gather that he correlated the Lower or more fossiliferous portion 

 of the Gosau Beds with the Gault, Upper Greensand, and Lower 

 Chalk, while he assigned the Hippurite-limestone to the Neocomian. 

 But he still clung to the idea that some of the Upper part of the 

 series might represent passage-beds from the Chalk to the Tertiary 

 system. Hence, the whole of the Gosau Beds would represent, 

 according to his views, all the English formations from the 

 Neocomian to the top of the Chalk, and would furnish the missing 

 overlying passage-beds as well. But, as these views have been 

 already discussed, we need not enter into them further. 



Judging from Suess's Note, appended to Prof. Seeley's paper, a 

 few remarks from which I have already quoted, we may conclude 

 that Prof. Seeley had some idea that the Estuarine beds of the Gosau 

 series, from which the reptilian remains so admirably described by 

 him were collected, might be on the same horizon as the Cambridge 

 Greensand. But, as we have already seen, from a comparison of the 

 Gosau fauna with the Senonian and Turonian faunas of the South 

 of France, it is highly probable that the Gosau Beds commence with 

 the zone of Holaster planus or the Chalk Rock, whereas' the Cam- 

 bridge Greensand occurs at a very much lower horizon, namely at 

 the base of the Chalk Marl. At the commencement of his paper, 

 too, Seeley speaks of the Gosau Beds as " nearly corresponding in 

 age to the Upper Greensand of this country," and in consequence of 

 this we find that some of the reptiles he has described are referred 

 to in Nicholson and Lydekker's ' Manual of Palaeontology ' as 

 occurring in the " Upper Greensand of Austria " (see vol. ii. 

 pp. 1160, 1163). 



Seeley revised Bunzel's work on the ' Reptiles of Neue Welt,' 

 published iu 1871, and described altogether 14 genera and 18 

 species, and all the species are peculiar. There are certainly 7 

 Deinosaurs, 1 each of Crocodiles, Lizards, and Pterodactyls, 2 genera 

 and 5 species of Chelonians. Out of the 14 genera only the fol- 

 lowing 5 are known in England : — Crocodilus, Megalosaurus, 

 Ornithocheirus, Hoplosaurus, and Emys. The Crocodilus is charac- 

 teristic of Tertiary and Recent times ; Megalosaurus ranges from 

 the Lower Jurassic to the Upper Cretaceous of Maastricht ; Ornitho- 

 cheirus characterizes Cretaceous rocks, Hoplosaurus Wealden ; and 

 Emys ranges from the Lower Eocene (or Gosau Beds, according to 

 Seeley) to recent times. The only two genera of these which occur 

 in the Cambridge Greensand are Ornithocheirus and Crocodilus, and 

 of these the latter genus does not seem to be recognized as of 

 1 Quart. Journ. Geol. Soc. vol. v. (1849) p. 157. 



