Evolving Concepts on the Nature and the Ecological Significance of Stromatolites

摘要: The German authors used to call “Mumien” ovoid cylindrical, finely laminated, calcareous nodules resulting from periodical algal encrustations around shells, pieces of wood, etc. (Pia, 1933; Rutte, 1953). These deposits are more precisely called “Schneckelistein” (Schmidle, 1910), or “Schnegglisand“ (Baumann, 1911), when the nucleus is a snail. freshwater structures take us back one first descriptions stromatolite–related objects: in 1649, indeed, laminated what now known as Eocene ‘Calcaire de Castre’ Formation (France) were studied by Borel and “Priapolithes”. As may be guessed name, provided best ever found literature.