Jin and Holmer—Karlsorus new genus from the Silurian of Gotland
915
Figure 2. Karlsorus gothlandicus (Lebedev, 1892) n. comb., Slite beds, upper Wenlock, Gotland. (1–5) Br 4516, dorsal, uncoated dorsal, lateral, ventral, and posterior views of incomplete shell from Lilla Karlsö, showing long, discrete inner hinge plates. (6), Br 110001, polished transverse section of a conjoined, anteriorly broken shell from Lilla Karlsö, showing internal structures similar to those of Pentamerus in posterior part of the shell, except for low inner hinge plates. (7) LMG 5943, large, anteriorly broken dorsal valve from the Blåhäll section, Fröjel, showing strong trilobation. (8) LMG 5944, medially split shell from Lilla Karlsö, showing longitudinal views of spondylium, hinge plates, and crura.
