Contents. 



Page 



Preface 5 



Introduction 8 



I. Fish Remains from Series D 8 



Macropetalichthys Scheii, new species - 9 



Strat i graphical results of Series D 15 



II. Fish Remains and other Fossils from Series E 16 



La inel 1 ib r an ch i ata 20 



Phtonia cf. cylindrica Hall 20 



Pisces 21 



Psammosteidae 21 



Psammosteiis arcticus new species 23 



complicatus new species 26 



Concerning Drepanaspis Gemflndenensis Schliil 29 



General remarks on the two new Psammosteiis species 34 



Coccosteidae 38 



Great Coccosteomorph form 38 



A s t e r o I e p i d a e 39 



Bothriolepis cf. hydrophila At; 39 



Bothriolepis (?) species 43 



Holoptycbiidae 44 



Holoptychius Schei new species 44 



cf. tuberculatus Newb 45 



Glyptolepis cf. paucidens Ag 45 



Teeth with dendrodont structure 47 



Rhizodontidae 48 



Tooth with rhizodont structure 48 



Osteolepidae 48 



Osteolepis sp 48 



Strati graphical results of Series E 48 



Distribution of the fauna in the fossiliferous horizons 48 



Changes of facies and biological conditions 50 



Conditions of age 53 



Geographical conditions of fauna 54 



