Archive image from page 167 of Dawn of life being the. Dawn of life: being the history of the oldest known fossil remains, and their relation to geological time and to the development of the animal kingdom dawnoflifebeingh00daws Year: 1875 140 THE DAWN OP LIFE. which contain them hold also fragments of Eozoon, and are not known to contain other fossils. d Ti c a Fig. 35. Annelid Burrows, Laurentian or Ilurcnian. Fig 1. Transverse section of Worm-burrow—magnified, as a transparent object. (a.) Calcareo-silicious rock. (6.) Space filled with, calcareous spar, (c.) Sand agglutinated and stai
Archive image from page 167 of Dawn of life being the. Dawn of life: being the history of the oldest known fossil remains, and their relation to geological time and to the development of the animal kingdom dawnoflifebeingh00daws Year: 1875 140 THE DAWN OP LIFE. which contain them hold also fragments of Eozoon, and are not known to contain other fossils. d Ti c a Fig. 35. Annelid Burrows, Laurentian or Ilurcnian. Fig 1. Transverse section of Worm-burrow—magnified, as a transparent object. (a.) Calcareo-silicious rock. (6.) Space filled with, calcareous spar, (c.) Sand agglutinated and stained black, id.) Sand less agglutinated and xm- coloured. Fig. 2. Transverse section of Worm-burrow on weathered surface, natural size. Fig. 3. The same, magnified. If we now turn to other countries in search of con- temporaries of Eozoon, I may refer first to some speci- mens found by my friend Dr. Honeyman at Arisaig, in Nova Scotia, in beds underlying the Silurian rocks of that locality, but otherwise of uncertain age. I do not vouch for them as Laurentian, and if of that age they seem to indicate a species distinct from that of Canada proper. They differ in coarser tubulation, and in their canals being large and beaded, and less divergent. I proposed for these specimens, in some notes contributed to the survey of Canada, the name Eozoon Acadianum, Dr. Gumbel, the Director of the Geological Survey
Size: 1658px × 1206px
Photo credit: © Bookive / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: 1800, 1870, 1875, americana, archive, biodiversity, book, bookauthor, bookcentury, bookcollection, bookcontributor, bookdecade, bookpublisher, booksubject, bookyear, dawson_john_william_sir_1820_1899, drawing, eozoon, harvard_university, harvard_university_museum_of_comparative_zoology, historical, history, illustration, image, life, london_hodder_stoughton, museumofcomparativezoology, page, paleontology, picture, print, reference, vintage
