Odontaspis winkleri Leriche, 1905

Kovalchuk, Oleksandr, Kriwet, Jürgen, Shimada, Kenshu, Ryabokon, Tamara, Barkaszi, Zoltán, Dubikovska, Anastasiia, Anfimova, Galina & Davydenko, Svitozar, 2023, Middle Eocene cartilaginous fishes (Vertebrata: Chondrichthyes) of the Dnieper-Donets Basin, northern Ukraine, Palaeontologia Electronica (a 32) 26 (2), pp. 1-37 : 14-15

Odontaspis winkleri Leriche, 1905

Figure 5I–L

1861 Lamna (Odontaspis) hispida Rog. ; Rogovich, p. 50, pl. VII, figs. 11, 12.

1905 Odontaspis winkleri sp. nov.; Leriche,

p. 74, p. 117, pl. 6, fig. 1-12.

1912 Odontaspis winkleri [sic] Ler. 1904; Savtchenko, p. 178-179.

1928 Oxyrhina hopei Ag. ; Menner, p. 303, pl. X, figs. 7, 8.

1946 Odontaspis (Synodontaspis) winkleri Leriche, 1905 ; Casier, p. 72, pl. 2, fig. 6.

1966 Odontaspis (Synodontaspis) winkleri Leriche, 1905 ; Casier, p. 72, pl. 5, figs. 1-4.

1985 Odontaspis winkleri Leriche, 1905 ; Bor,

p. 91, pl. 2, fig. 8.

1987 Odontaspis winkleri Leriche ; Cappetta,

p. 89, fig. 79A-D.

1988 Odontaspis winkleri Leriche ; Nolf, pl. 26, figs. 1-12.

2005 Odontaspis winkleri Leriche, 1905 ; Cappetta and Nolf, p. 248.

2006 Odontaspis winkleri (Leriche) ; Udovichenko, p. 202, pl. I, figs. 11, 12.

2012 Odontaspis winkleri Leriche, 1905 ; Cappetta, p. 204, fig. 192A-D.

2012 Otodus winkleri Lériche, 1905 ; Diedrich, p. 19, fig. 14.11.

2014 Odontaspis cf. winkleri Leriche, 1905 ; Carlsen and Cuny, p. 54, fig. 9G-L.

2016 Odontaspis winkleri Leriche, 1905 ; Cappetta and Case, p. 49, pl. 2, fig. 6.

2016 Odontaspis winkleri Leriche, 1905 ; Malyshkina and Ward, p. 53, fig. 3N, O.

2019 Odontaspis winkleri Leriche, 1905 ; Ebersole et al., p. 52-53, fig. 18.

Material. Two anterior teeth, NMNHU-G 391/83; one anterolateral tooth, NMNHU-G 391/74; three lateral teeth, NMNHU-G 391/76, 391/79, 391/82, Vyshhorod.

Description. The teeth ( Figure 5I–L ) vary in size from 10.9 to 17.3 mm apicobasally and from 9.1 to 12.5 mm mesiodistally. The crown is slender and has a smooth surface. In addition to a narrow and pointed main cusp, there are two pairs of very sharp cusplets, which are fused by their bases and differ in size: the inner ones are high (up to 4 mm) and circular at the base while the outer cusplets are vestigial. Cutting edges are not serrated and do not reach the crown base. The root is massive, usually arcuate, and has two relatively long lobes with rounded tips. Its labial face is concave, whereas the lingual face is convex and bears a deep nutritive groove.

Remarks. The specimens considered are similar in morphology and size to those in Odontaspis winkleri originally described by Leriche (1905). They differ from those of other odontaspidids by high and cylindrical lateral cusplets, incomplete cutting edges in anterior teeth, and well-pronounced folds at the base of the labial side in lateral teeth (Ebersole et al., 2019). Odontaspis winkleri is well represented in the Eocene fossil record of Europe (Leriche, 1905; Casier, 1946, 1966; Bor, 1985; Nolf, 1988; Adnet 2006b; Dutheil et al., 2006; Udovichenko, 2006; Eeckhaut and De Schutter, 2009; Rayner et al., 2009; Cappetta, 2012; Diedrich, 2012; Carlsen and Cuny, 2014), Asia (Savtshenko, 1912; Menner, 1928; Malyshkina and Ward, 2016), and North America (Cappetta and Case, 2016; Ebersole et al., 2019).

Figures

FIGURE 5. Lamniform shark teeth from the middle Eocene deposits of Vyshhorod: A-F – Jaekelotodus trigonalis (Jaekel, 1895), lateral teeth NMNHU-G 391/62 (A-B), NMNHU-G 391/139/1 (C-D), NMNHU-G 391/139/2 (E-F); G-H – Mennerotodus cf. M. parmlei Cicimurri, Ebersole and Martin, 2020, lower anterior tooth NMNHU-G 391/71; I-L – Odontaspis winkleri Leriche, 1905, anterolateral tooth NMNHU-G 391/74 (I-J); lateral tooth NMNHU-G 391/79 (K-L); M-S – Isurolamna affinis (Casier, 1946), anterolateral tooth NMNHU-G 391/97 (M-N), anterior tooth NMNHU-G 391/94 (O-Q), lateral tooth NMNHU-G 391/95 (R-S). Labial view in A, C, E, G, I, K, M, O, and S, lingual view in B, D, F, H, J, L, N, P, and R, mesial view in Q.