Eoptolamna eccentrolopha, Kriwet, Jürgen, Klug, Stefanie, Canudo, José I. & Cuenca-Bescos, Gloria, 2008

Kriwet, Jürgen, Klug, Stefanie, Canudo, José I. & Cuenca-Bescos, Gloria, 2008, A new Early Cretaceous lamniform shark (Chondrichthyes, Neoselachii), Zoological Journal of the Linnean Society 154 (2), pp. 278-290 : 280-281

EOPTOLAMNA ECCENTROLOPHA GEN. ET SP. NOV.

1996a Protolamna cf. sokolovi Cappetta, 1980 ; Canudo et al.: 51, fig. 8.

1999 Protolamna cf. P. sokolovi Cappetta, 1980 ; Kriwet: 120, text-fig. 2, pl. 2, fig. 4 (non fig. 5).

2003 Protolamna cf. sokolovi Cappetta, 1980 ; Mendiola & Martinez: 36.

2004 Protolamna cf. sokolovi Cappetta, 1980 ; Cuny et al.: 132, pl. 1, fig. 17–19, pl. 2, figs. 1–3.

Derivation of name: From the Latin word ‘eccentricus’, meaning ‘eccentric’, and the Greek word ‘lophos’, meaning ‘crest’, in allusion to the distinctive labial crests.

Type specimen: Anterolateral tooth, MPZ 2005-4 ( Fig. 2A–D ), housed in the Museo Paleontológico, Universidad de Zaragoza , Spain .

Type locality and age: Vallipón , west of Castellote , c. 150 km south-east of Zaragoza ; Artoles Formation, upper Barremian .

Type stratum: Basal conglomeratic bed.

Referred material: About 30 teeth from the Albian of Castellote , Province of Teruel ( Figs 2E–Z , 3 ) .

Diagnosis: As for genus, monotypic.

Figures

Figure 2. Eoptolamna eccentrolopha gen. et sp. nov. from the upper Barremian of Vallipón. A–D, anterolateral tooth, MPZ 2005-4, holotype. A, labial view. B, profile view. C, lingual view. D, occlusal view. E–G, symphyseal? tooth, MPZ 2005-5, paratype. E, labial view. F, profile view. G, lingual view. H–J, anterior tooth, MPZ 2005-6, paratype. H, labial view. I, profile view. J, lingual view. K–N, lateral tooth, MPZ 2005-7, paratype. K, labial view. L, labio-occlusal view. M, profile view. N, lingual view. O–R, lateral tooth, MPZ 2005-8, paratype. O, labial view. P, labio-occlusal view. Q, profile view. R, linguo-occlusal view. S–V, lateral tooth, MPZ 2005-9, paratype. S, labial view. T, labio-occlusal view. U, profile view. V, lingual view. W–Z, posterior tooth, MPZ 2005-10, paratype. W, labial view. X, profile view. Y, lingual view. Z, occlusal view. Scale bar: 0.5 cm.

Figure 3. Eoptolamna eccentrolopha gen. et sp. nov. from the upper Barremian of Vallipón. A, anterolateral tooth, MPZ 2005-11, paratype, labial view. B, lateral tooth, MPZ 2005-12, paratype, labial view. C, lateral tooth, MPZ 2005-13, paratype, lingual view. D, lateral tooth, MPZ 2005-14, paratype, lingual view. E–F, anterolateral tooth, MPZ 2005-15, paratype. E, lingual view. F, labial view. G, intermediate? tooth, MPZ 2005-16, paratype, labial view. Scale bars: 0.25 cm.