6 



A. H. Westergård 



gothian mountains (KiunekuUe, Mösseberg and Hunneberg) and mentioning that to 

 these regions two more must be added, of which one, Regio Cryptonymorum, 

 builds up Gotland and the other, Regio Couocorypharum, was up to that time only 

 met with in Skåne and on the island of Bornholm, Angelin sets forth his complete 

 scheme in the following manner. 



Regio VIII. 



Crj'ptonyraorum (Encrinurorum) = E. 



VII. 



Harparum = DE. 



VI. 



Trinucleorum = D. 



V. 



Asaphorum = C. 



IV. 



Ceratopygarum = BC. 



III. 



Conocorypharum = B. 



II. 



Olenorum = A. 



I. 



Fucoidarum . 



That the succession of strata given in this scheme is not quite correct was 

 shown already by Linnarsson in 1868 ^ In the scheme Regio Conocorypharum, 

 or as it is now called the Paradoxides beds, (which Angelin knew only from Skåne, 

 and whose place in the sequence — for the rest taken from the Vestrogothian moun- 

 tains — he accordingly has not had the chance to observe directly) has been 

 wrongly inserted above instead of belotv Regio Olenorum. It is to be observed, 

 however, that from the statements given in Palieontologia Scandinavica of the 

 distribution of the species in different regions, it plainly appears that Angelin's 

 Regio Conocorypharum does not comprise the whole of the Paradoxides beds but 

 only the zone of P. Forchhammeri or the »Andrarum limestone». On the other hand, 

 the zone of P. Tessini, which was, besides the above-mentioned one, the only zone 

 of Paradoxides beds known at that time, was classed with the Regio Olenorum. 



As will appear from the above scheme, Angelin marked his regions not only 

 with numbers but also with letters, the latter notation, however, only for the fossili- 

 ferous regions II— VIII. From Regio Fucoidarum no fossils were yet known. 



From the letters it also appears that Regio Harparum and Regio Ceratopygarum, 

 marked BE and BC (or, as Angelin also writes it, D — E and B — G) respectively, 

 have afterwards been inserted in an older scheme comprising only five regions 

 A, B, C, D and E, which scheme was completed with the regions BC and DE only 

 after the first fasc. had been published. That this has been the case is confirmed 



especially by the circumstance that Angelin in fasc. I does not mention a single 

 species belonging to regio B C and, above all, by the fact that the two species 

 Phacops mucronala Bbongn. and Phacops eucentra Ang. belonging to Regio Harparum, 

 which are described in the same fasc, are here mentioned as belonging to Regio E, 



' Bidra.g till Vestergötlands -Geologi. — Öfvers. af Kgl. sv. Vet.-Ak. Förhaudl. 



