NO. 2.] SUMMARY. 105 



3. SUMMARY. 



From the above descriptions, a fauna of at least 26 forms may be 

 demonstrated in the Jurassic Sedimentary Rocks collected by Professor Nan- 

 sen in the Cape Flora district. 



The abundance of forms contained in the rocks is not, however, exhausted 

 by these 26 different species, as there are also numerous fragments of other 

 species as has been already frequently mentioned differing from the 

 forms described, for whose approximate determination, even, there is no 

 sufficient clue. 



It appears from an inspection of the collection of the Jackson-Harmsworth 

 Expedition, described by Newton, that the abundance of Jurassic animal 

 fossils at Gape Flora is greater than would appear from the material collected 

 by Professor Nansen. According to Newton's account, the entire number of 

 the species (of the fauna) of the Jura of Cape Flora, amounts to at least 31 . 



In the following list, the fossils collected by Professor Nansen are placed 

 opposite to those described by Newton. In so far as any criticism of 

 Newton's determinations of the fossils is possible from his descriptions and 

 illustrations, it will be found in the descriptive part of the present work; its 

 results are apparent from the following table. 



14 



