BIHANU TILL K. SV. VET.-AKAD. HANDL. BAND. 3. N:0 12. 7 



Finally, tlie Paradoxides beds occur also in Laplaud, ^) but 

 of their distribution and of the succession of the strata in that 

 distant region verv little is known. 



From what bas been stated above, it will be found that 

 there are in tbe Swedish Paradoxides beds at least six divisions, 

 each containlng its peculiar fossils. These divisions niay be 

 ärran »ed as follows : 



6. Strata witb Agnostus la^vigatus. 



Paradoxides Forclihammeri. 

 Paradoxides ölandicus. 

 Paradoxides Davidis. 

 Paradoxides Tessini. 

 Paradoxides Kjerulfi. 

 It must, hoAvever, be remembered that the relative position of 

 the strata with Paradoxides ölandicus is not yet settled. 



The fauna of the Paradoxides beds is far richer than that 

 of the Olenus beds, though in the former too only a few classes 

 of the animal kingdom are represented. The Trilobites have 

 u decided preponderance. Professor Angelest has described 

 about 30 species of them. To these there are to be added a large 

 number, partly undescribed, partly described by Mr. Sjögeen and 

 myself. Of other Crustacea only a Leperditia has been described. 

 The Mollusca are only represented by two classes, the Pteropoda 

 und the Brachiopoda. Of the former only some species of 

 HyoJitlius are known. ^Nlore numerous are the latter. Of Sponges 

 Dr. Xathorst mentions from the Paradoxides beds of Scania a 

 Prototsjiongia. Bryozoa, Corals and Echinodermata are totally 

 unknown from the Paradoxides beds, as, indeed, from the "svholc 

 Primordial zone of Sweden. 



The Brachiopoda, though comparatively numerous and, next 

 to the Trilobites, by far the most important fossils of the Para- 

 doxides beds, have hitherto met with but little attention. Among 

 the Brachiopoda described by Wahlenberg, Dalman and Hisin- 

 GER only one species, Orthis lenticularis, belongs to the Pri- 

 mordial zone, and this occurs in the Olenus beds. No Brachio- 

 poda have since been described from the Primordial zone of 

 Sweden, -) but the following enumeration of the Primordial Bra- 



') See LiXNARSSON, Försteningar från Lappland, insamlade af Hrr E. SlDEN- 

 BLADH och E. Erdmann, Geol. Fören. Förbandi. 1874, ]Sr:o 4. 



*) From the rocks below the Primordial zone I have myself described two 

 species, OholuxQ) vwnUlfcr and Z;«/7«Zö (?) ./"rtTOÄrt (Geol. Magazine 1869; 

 Geognostiska och paheontologiska iakttagelser öfver Eophyton-sandstenen 



