Analysis of information sources in references of the Wikipedia article "Precambrian" in English language version.
The name Eozoic seems to have been proposed by Dr. J.W. Dawson, of Montreal, in 1865. He did not fully define the limits of its application at that time; but it seems to have been generally understood by geologists to embrace all the obscurely fossiliferous rocks older than the Cambrian.
[1888] Sir J. W. Dawson prefers the term "Eozoic" [to Archean], and would have it include all the Pre-Cambrian strata.
a possibility of dividing the Precambrian history into two eons: the Eozoic, embracing the Archean Era only, and the Protozoic, comprising all the remaining Precambrian Eras.