Fig. 7 in A low diversity shallow water lingulid brachiopod-gastropod association from the Upper Ordovician of Kyrgyz Range

Fig. 7. The holopeid gastropod Ptychonema agyris Ebbestad, sp. nov. from the Almaly Formation, Caradocian (Upper Ordovician) of Kyrgystan. A. Reconstruction of the shell in dorsal view. B. Reconstruction of the shell in lateral view. C. Reconstruction of the shell in presumed life position with the apertural plane horizontal and with slight regulatory detorsion to balance the shell. Note how the emargination is not in an anterior position. D. Reconstruction of the shell in presumed life position with the apertural plane horizontal, but without regulatory detorsion, so that the emargination is in an anterior position.