Fig. 2 in A new type of colony in Silurian (upper Wenlock) retiolitid graptolite Spinograptus from Poland

Fig. 2. Retiolitid graptolites Spinograptus tubothecalis sp. nov. and Spinograptus clathrospinosus Eisenack, 1951 from the Gołdap IG−1 borehole, Poland. A, B, D, E. Spinograptus tubothecalis sp. nov., depth 1267.0 m, Colonograptus deubeli Biozone, Wenlock. A. ZPAL G. 47/1, holotype, stereopair of obverse view of finite rhabdosome, proximal lateral orifice (arrow) (A1); proximal view of rhabdosome (A2), outer ancora arrowed; proximal view of isolated last theca and nema (A); ancora umbrella and dense outer ancora at th 11 side of rhabdosome (arrow) (A). B. ZPAL G. 47/5, th 11 side view of proximal 3 4 part of rhabdosome showing dense outer ancora and pre−thecal ventral orifice overgrown by reticulum (arrow) (B1), rudimentary transverse rod (arrow) (B). D. ZPAL G. 47/8, th 12 side view of proximal part of rhabdosome showing overgrown pre−thecal ventral orifice (arrow). E. ZPAL G. 47/9, proximal 2 view of immature rhabdosome showing ancora umbrella and outer ancora starting to grow (arrow). C. Spinograptus clathrospinosus Eisenack, 1951, ZPAL G. 47/10, depth 1259.0 m, Colonograptus ludensis Biozone, Wenlock, open−ended rhabdosome with three pairs of thecae, lateral view (C1), obverse view of proximal end of rhabdosome (C) showing ancora umbrella and outer ancora at th 11 side of rhabdosome.