356 



PALAEOZOIC TIME — CARBONIFEROUS AGE. 



Genera of Coal Plants. 



Scolopendrites Lsqx 



Whittleseya Newb 



Cordaites Ung 



Diplotegium Corda 



Stigmaria Brngt 



Sigillaria Brngt 



Syringodendron Brngt 



Diploxylon Corda 



Lepidodendron Brngt 



Ulodendron Rhode 



Megaphytum Artis 



Knorria Sternb 



Halonia LI. & Hutt 



Lepidophyllum Brngt 



Lepidostrobus Brngt 



Cardiocarpum Brngt 



Trigonoearpum Brngt , 



Rhabdocarpus Gopp. & Brngt, 



Carpolithes Sternb 



Selaginites Brngt 



Lycopodites Brngt 



Lepidophloios Sternb 



Botbrodendron Gopp , 



Calamites Suck , 



Bornia Sternb. & Gopp , 



Asterophyllites Brngt 



Annularia Sternb , 



Sphenophyllum Brngt , 



Species peculiar 



Species peculiar 



Species common 



to America. 



to Europe. 



to both. 



1 











1 











1 







2 











1 



5 



2 



5 



21 



37 



17 



2 



2 



2 











1 



14 



10 



11 







4 



2 



2 



4 







2 



1 



2 







2 



1 



7 



2 



4 



1 



1 



2 



7 



6 



2 



6 



5 



5 



2 



6 



1 



12 



52 



6 







1 







1 



12 







1 







1 







1 







2 



5 



11 



1 



1 







5 



8 



7 • 



1 







5 



5 



3 



3 



According to this table — which was prepared in 1860 — there are in all about 

 350 known American species, and 490 European (and British) ; and of these 

 146 are common to the two continents. In other words, more than one-third of 

 all the American species were growing also in the Carboniferous forests of the 

 other continent. 



2. Animals. 



The most important additions to the facts already stated, fur- 

 nished by the European rocks, are those relating to the class of 

 Insects and Spiders. We learn that besides Cockroaches, which 

 also existed in Europe, there were probably Weevils, as well as 

 other kinds of beetles, species related to the Dragon-fly, and also 

 Termites and Locusts. The class of Spiders (or Arachnidse) was repre- 

 sented by Scorpions and Pseudo-scorpions. 



The Vertebrates were similar in type to the American, the fishes 

 being Ganoids and Selachians, and the Reptiles Labyrinthodonts and 

 other Amphibians. 



A review of the species of Radiates and Mollushs is not necessary here, as the 

 facts add nothing new in principle to what has been gathered from the Ameri- 

 can strata. 



