Fig. 8 in Taxonomy and ontogeny of the Lituitida (Cephalopoda) from Orthoceratite Limestone erratics (Middle Ordovician)

Fig. 8. Ornament details of lituitid specimens. A. Coarse lirae, symmetric crests; Rhynchorthoceras angelini (Boll, 1857), specimen MB.C.30495.1. B. Coarse lirae, asymmetric crests; R. angelini (Boll, 1857), specimen MB.C.11716. C. Faint, widestanding striae; R. rugium sp. nov., holotype MB.C.11728. D. Lirae and almost smooth internal shell; Ancistroceras torelli (Remelé, 1881), specimen MB.C.30519. E. Lirae and undulated internal shell; A. undulatum (Boll, 1857), specimen MB.C.11697. F. Narrow annuli, raised lirae and growth lines; Cyclolituites applanatus (Remelé, 1880), specimen MB.C.30560. G. Wide-standing, prorsiradiate lirae and very fine growth lines; Lituites dewitzi sp. nov., holotype MB.C.30538. H. Sharp lirae, straight on the flanks; L. fallax Remelé, 1890, holotype MB.C.11672.2. I. Sharp, prorsiradiate lirae and flat annuli; L. kruegeri sp. nov., holotype MB.C.30539. J. Wide-standing, sharp lirae and very flat annuli, straight on the flanks; Trilacinoceras knoefleri sp. nov., paratype MB.C.30559. Scale bar units = 1 mm.