Fig. 9 in The soft-tissue attachment scars in Late Jurassic ammonites from Central Russia

Fig. 9. Posterior borders of the lateral attachment scars on the Kachpurites fulgens (Trautschold, 1861) (A–D) and Garniericeras catenulatum (Fischer, 1830) (E) shells from Late Volgian (Kachpurites fulgens and Craspedites subditus zones, respectively), Moscow region, Eganovo locality (A–D), Kuntsevo locality (E). A. MSU 113/29, apical part of body chamber with a series of posterior borders of scars very similar to the lateral sinuses. B. MSU 113/32, sinus-like lines on the posterior part of the shell, scars near the last septum. C. MSU 113/33, sinus-like lines on the posterior part of the shell, scars near the last septum. D. MSU 113/8, part of body chamber with scars and lateral sinuses. Scar has a series of clearly visible sinus-like posterior borders. The specimen is preserved without aperture. E. MSU 113/43, apical part of the body chamber, posterior border of a scar is visible on one side of this specimen at a distance from the last septum. Asterisks mark the base of the body chamber. Photographs (A 1 –E 1) and explanatory drawings (A 2 –E 2).