Fig. 39. Lituites perfectus Wahlenberg, 1818. A in Taxonomy and ontogeny of the Lituitida (Cephalopoda) from Orthoceratite Limestone erratics (Middle Ordovician)

Fig. 39. Lituites perfectus Wahlenberg, 1818. A. Outline of coiled conch part of neotype MB.C.30544. B–E. Conch proportions and coiling rates of neotype MB.C.30544. F. Outline of coiled conch part of specimen MB.C.30542. G–J. Conch proportions and coiling rates of specimen MB.C.30542. K. Outline of coiled conch part of specimen MB.C.11646. L–O. Conch proportions and coiling rates of specimen MB.C.11646. Scale bar units = 1 mm.