Fig. 4 in Lanea carlsi conodont apparatus reconstruction and its significance for subdivision of the Lochkovian

Fig. 4. SEM photographs of Pb elements of spathognathodontid conodont Lanea carlsi (Boersma, 1973). A. NM L40535, incomplete element, inner lateral view (A1), detail of the basal area (A2). B. NM L40536, adult element, outer lateral view (B1), detail of denticles on posterior blade (B2). C. NM L40537, detail of denticulation on posterior blade (C1), outer lateral view (C2). All figured specimens are from sample 4Po22.