I916. No. 10. THE LOWER CAMBRIAN HOLMIA FAUNA. II 



Cambrian strata. In 1882, these sections were published by W. C. Brøgger^ 

 and possess great interest. Further important information is given in a 

 new work by J. Brâstad - concerning the oldest fossiliferous beds at 

 Bråstad river on the west side of Mjøsen. In a later section, concerning 

 the stratigraphie position of the Holmia shales, I shall again refer to this 

 matter. 



Material. 



A part of the material that forms the basis of the present account of 

 the Holmia fauna was collected many years ago. Thus a large collection, 

 containing man}^ good specimens, was made by Tii. Kjerulf and his 

 assistants — particularly Thommassen — in 1874. Later on, a number 

 of good and interesting specimens were collected by W. C. Brøgger, who 

 often visited the locality when making excursions with students. The 

 bulk of the material, however, is the result of an extensive excavation 

 that was made in 1913. The work was carried out by J. Brâstad, 

 amanuensis, accompanied by my permanent collector Th. Holdt, stone- 

 worker, and the results were admirable. More than 1300 specimens were 

 collected, containing many excellent examples of both new and known 

 forms. Finally, a visit paid in 19 15 resulted in a number of good and 

 interesting specimens. On the whole, the collection which has been 

 examined by myself, contains between 1500 and 1600 specimens with 

 fossils from Tomten, in addition to a number from other localities. 



The older collection is catalogued A. K. i, &c., the recent ones 

 B. K. i, &c., and collections from the excavation of ]9i3: 13, XXVII, i, 

 &c., and that of 1915: 15, III, i, &c. 



^ Paradox. Ölandicus nivaaet ved Ringsaker i Norge. Geol. Foren, i Stockholm. Förh. 



1882. Vol. VI. 

 2 Discinella Holsti faunaen ved Brâstadelven nord for Gjøvik. Norsk Geol. Tidsskr. 



Vol. III, No. 5, 1915. 



