Murchison on the Permian System, 



273 



application of the collective word Permian to a succession of strata 

 which had not been previously united through their geological 

 relations and organic contents. 



These proofs will, we trust, be considered as still more strongly- 

 borne out by the grandeur of the phenomena to which we have ap- 

 pealed ; for the Permian deposits of Russia repose upon carbonifer- 

 ous strata throughout more than two-thirds of a basin which has a 

 circumference of not less than 4000 English miles. 



A detailed tabular list of the animal remains of the Permian 

 system in Europe was also given, mentioning the names of the 

 authors who have described each species, the localities at which it 

 has been found, and its vertical range in the Palaeozoic series. This 

 table will appear " in extenso" in the forthcoming work upon Russia, 

 and in the meantime the following recapitulation is subjoined : but 

 the authors express their regret that their table was drawn up with- 

 out the benefit of the long- promised assistance of Professor Agassiz. 

 His observations on a few of the Permian ichthyolites which were 

 submitted to him will increase the number of that class of fossils. 



Recapitulation of the Fauna of the Permian System in Europe. 



Species found in Russia* 



Classes. 



Polyparia 



Echinodermata .. 



Conchifera, Ord. Brachiopoda 



Ord. Dimyaria .. 



Ord. Monomyaria 



Mollusca, Ord. Gasteropoda 



-. Ord. Cephalopoda 



Annelida 



Crustacea 



Pisces • . ... 



Keptilia 



a> g 



3 



15 



2 



30 



'26 

 16 

 22 

 3 

 2 

 2 

 43 

 5 



>0h 



a 



.a 



13 



I 



20 

 26 

 15 

 19 

 3 

 2 

 2 



42 

 5 



10 



Total .... 66 166 148 



18 



~ <t S % a «-° « 2 





b. 



Previously found 

 elsewhere. 



« % a w 



■* cs g m a 2 



a 



£2 



§ > 



'+J CO 



a u 



3 or 4 12 



