CARBONIFEROUS PERIOD. 



355 



Belgium. — Liege Coal field, — the eastern division. — Hainault Coal field, — 

 western division. 



Germany. — Basin of the Saar, tributary to the Moselle on the borders of 

 France. — Basin of the Ruhr, tributary to the Rhine, near Dusseldorf, — the 

 eastern extension of the Belgian region. In Saxony, near Zwickau and Dresden. 



Austria. — Bohemia, south of the Erzgebirge and Riesengebirge, and reaching 

 into Silesia. 



Spain. — In the Asturias (largest). — Near Cordova. — Catalonia (small). 



Portugal. — Near Coimbra. 



n. Life. 



1. Plants. 

 The same genera are represented among the European coal beds 

 as occur in America ; and very many of the species are identical. 

 In this respect the vegetable and animal kingdoms are in strong 

 contrast ; for the species of animals common to the two continents 

 have always been few. 



The following table, by Lesquereux,* shows the number of American species 

 of the several genera that have also been found in the European Coal measures, 

 as well as the number peculiar to each, America and Europe : — 



Genera of Coal Plants. 



Noeggerathia Sternb. ... 



Cyclopteris Brngt 



Neuropteris Brngt 



Odontopteris Brngt 



Dictyopteris Gutb 



Sphenopteris Brngt , 



Hymenophyllites Gb'pp. 



Rhodea Sternb 



Trichomanites Gbpp. ... 



Steffensia Gbpp 



Beinertia Gbpp 



Diplazites Gbpp 



Woodwardites Gbpp. ..., 



Alethopteris Sternb 



Callipteris Brngt 



Pecopteris Brngt 



Aphlebia Sternb 



Caulopteris Brngt 



Psaronius Brngt 



Crematopteris Schp 



Species peculiar 

 to America. 



Species peculiar 

 to Europe. 



2 

 2 



20 

 1 



49 

 6 

 4 



Species common 

 to both. 



1 

 2 



12 

 3 

 



12 

 2 

 

 

 

 

 

 

 9 

 1 



12 

 1 

 

 

 



* Am. Jour. Sci. [2] xxx. 66. In the table, as originally published by Les- 

 quereux, the species of Dr. Newberry's cabinet are added with an asterisk : the 

 above has been modified upon advice received from the latter. The identifica- 

 tion of American with European species requires more careful inveEtigation, as 

 Lesquereux and Newberry both observe. 



