FIGURE 2 in Evolutionary significance of the retiolitine Gothograptus (Graptolithina) with four new species from the Silurian of the East European Platform (Baltica), Poland and Lithuania

FIGURE 2. Immature tubaria of Gothograptus auriculatus n. sp. from the Bartoszyce IG-1 core, depth 1645.6 m, praedeubeli Biozone, Poland. A. tubarium with four pairs of thecae, ZPAL G.55/1. B. tubarium with two pairs of thecae, ZPAL G.55/2. C– E. tubarium with first pair of thecae, ZPAL G.55/3; C. ventro-lateral view, D. enlargement of distal part of virga with trace of prosicular apex, E. enlargement of distal end showing virga and fragment of virgella. Abbreviation: pros.—prosicular.