Kunzmann, Lutz; Rössler, Ronny
published: Dec 28, 2016
Volume 293 of Palaeontographica B, published in December 2015, is the first part of a special issue (Kunzmann 2015) which commemorates the German palaeobotanists Dieter H. Mai (1934–2013) and Harald Walther (1929–2013). The second and final part includes four articles; Sergey Vikulin (St. Petersburg, Russia) intended to submit a fifth contribution; however he died unexpectedly in 2015 and did not finish his manuscript. We mourn the wellknown Russian Tertiary palaeobotanist who applied Mai and Walther’s phytostratigraphic concept of macro floristic complexes to the European part of Russia consistently.