Fig. 6 in Middle and Late Jurassic tube-dwelling polychaetes from the Polish Basin: diversity, palaeoecology and comparisons with other assemblages

Fig. 6. Serpulid polychaetes from the Jurassic of Poland. A. Cementula cf. circinnalis (Münster in Goldfuss, 1831) encrusting an oncoid from the upper Bajocian–lower Bathonian of Ogrodzieniec-Świertowiec (GIUS 8-3750/4). B. "Serpula cingulata Münster in Goldfuss, 1831" encrusting a sponge fragment from the the Oxfordian of Zalas (GIUS 8-3746/7). C. Propomatoceros lumbricalis (Schlotheim, 1820) (arrowhead) and Cementula cf. circinnalis arrow) encrusting an oncoid from the upper Bajocian–lower Bathonian of Ogrodzieniec-Świertowiec (GIUS 8-3750/5). D–F. Propomatoceros lumbricalis, specimen encrusting: a piece of a belemnite rostrum from the middle Bathonian of Gnaszyn Dolny (D, GIUS 8-3730/11); an oyster shell from the middle Bathonian of Gnaszyn Dolny (E, GIUS 8-3730/12); a shell fragment from the Callovian of Zalas (F, GIUS 8-3589/11).