Their internal anatomy was not only entirely unknown, but also and mostly highly controversial. Bertrand Lefebvre More Quotes by Bertrand Lefebvre More Quotes From Bertrand Lefebvre It is only when we unpacked and looked at them under the binocular [microscope], back in the laboratory in Lyon, that we could see the soft parts, their presence and identification were then confirmed by SEM (scanning electron microscope) observations and analyses. Bertrand Lefebvre science This discovery is of particular importance, because it brings to an end a 150-year-old debate about the position of these bizarre-looking fossils in the tree of life. Bertrand Lefebvre science
