Kozlowska, Anna; Bates, Denis E. B.; Piras, Sergio
(2011-06-13)
The retiolitid graptolite Reticuloplectograptus serpaglii gen. et sp. nov. from the Gorstian, lower Ludlow, has been found in two localities: the Bartoszyce borehole of Poland (Baltica), and the Bykos. section, Barrandian, ...