eozoon การใช้

Sir William Dawson's name is especially associated with " Eozoon canadense ", which in 1865 he described as an organism having the structure of a foraminifer.
He took a keen and laborious interest in the evidence adduced by Canadian geologists as to the organic nature of the so-called " Eozoon canadense ", discovered in the Laurentian strata, also called the North American craton, and at the time of his death had nearly finished a monograph on the subject, defending the now discredited theory of its animal origin.
In the course of his long and active career he engaged in much Rhaetic for the uppermost division of that system; he supported at first the view of the organic nature of " Eozoon canadense " ( 1866 and 1876 ), he devoted special attention to Foraminifera, and described those of the Eocene strata of the northern Alps ( 1868 ); he dealt also with " Receptaculites " ( 1875 ) which he regarded as a genus belonging to the Foraminifera.