Research Article

Skeleton of the Fossil Shark Isurus denticulatus from the Turonian (Late Cretaceous) of Germany—Ecological Coevolution with Prey of Mackerel Sharks

Figure 6

Teeth of Isurus from different sites of north-western Germany. (a) Lateral tooth of I. denticulatus from the late Turonian of Halle/Westph. (NMB, no. 3916 Foerth-Isurus-1a); labial, lateral, lingual views; (b) anterior tooth of I. denticulatus (skeleton) from the late Turonian of Halle/Westph. (NMB, no. 3916 Foerth-Isurus-1a): labial, lateral, lingual views; (c) lateral rootless tooth of I. denticulatus (skeleton) from the late Turonian of Halle/Westph. (NMB, no. 3916 Foerth-Isurus-1a), lingual view; (d) lateral rootless tooth of I. denticulatus (skeleton) from the late Turonian of Halle/Westph. (NMB, no. 3916 Foerth-Isurus-1a): lingual view; (e) lateral rootless tooth with lateral cusps of I. denticulatus from the late Turonian of Halle/Westph. (NMB, no. 3916 Foerth-Isurus-1a): labial view; (f) lateral tooth of I. denticulatus from the late Cenomanian (Chondrites bed, Calycoceras naviculare Zone) of Halle/Hesseltal (EZM Diedrich Hes-1): labial, lingual views; (g) posterior lateral tooth of I. denticulatus from the late Cenomanian (Puzosia event I, Metoicoceras geslinianum zone) of Halle/Hesseltal (WMFNM, no. P.-22024): labial view; (h) lateral tooth of I. denticulatus from the late Cenomanian (Grüne Mergellage, Calycoceras naviculare Zone) of Halle/Hesseltal, (EZM Diedrich Hes-2): labial view; (i) anterolateral tooth of I. appendiculatus from the early Cenomanian (slump in the Mantelliceras dixoni zone) from Halle/Ascheloh (EZM no. Diedrich, Asch-Sel 3): (A) labial, (B) lateral, (C) lingual views; (j) lateral tooth of I. appendiculatus from the early Cenomanian (slump in the Mantelliceras dixoni zone) from Halle/Ascheloh (EZM no. Diedrich, Asch-Sel 4): labial, lateral, lingual views; (k) lateral tooth of I. appendiculatus from the early Cenomanian (slump in the Mantelliceras dixoni Zone) from Halle/Ascheloh (EZM No. Diedrich, Asch-Sel 5): labial view; (l) symphyseal tooth of I. denticulatus from the late Cenomanian (Puzosia event I, Metoicoceras geslinianum zone) from Halle/Hesseltal (WMFNM, no. P.-19918), labial view.
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