CONTEMPORARIES OF EOZOON 



517 



Eozoon through Cryptozoon with large organisms, 

 probably Protozoa, extending upward to the top of 

 the Cambrian, and thus forming a link of connec- 

 tion between the life of the Eozoic and that of 

 the Palaeozoic period. Matthew has also described 

 forms which he regards as spicules of sponges from 

 the Laurentian of New Brunswick. One of these 

 seems to present cruciform needles forming square 

 areas, like the Protospongia of Salter, from the Cam- 

 brian. The other has simple elongate needle-like 

 spicules arranged in bundles. Matthew summarizes 

 the rocks containing these fossils as in the table on 

 p. 216, in descending order, the highest bed being 

 below the Etcheminian.^ The first and second 

 groups, it will be observed, are equivalent to the 

 Huronian ; the third corresponds to the Grenvillian, 

 and the fourth to the Lower Laurentian. 



pp. 10, D. D., and 21, D. D. Dr. R. W. Ells in the same 

 Report, p. 6, D., describes these rocks, sixty miles east of 

 St. John, as one system, with a thickness of 14,000 feet. 



** Fuller descriptions of these rocks may be found in Rep. 

 Prog. Geol. Surv. of Canada., 1872, pp. 30, 34, etc. 



^ Bulletin Nat. Hist. Society of New Brunswick^ 1890 

 where further details are given as to the fossils. 



