Leptolepis

Konwert, Martin & Stumpf, Sebastian, 2017, Exceptionally preserved Leptolepidae (Actinopterygii, Teleostei) from the late Early Jurassic Fossil-Lagerstätten of Grimmen and Dobbertin (Mecklenburg-Western Pomerania, Germany), Zootaxa 4243 (2), pp. 249-296 : 275

Leptolepis sp. 1

Figures 8 A, B; Plate 4E

Remark. The herein examined specimens GG 431/4, GG 431/17 and GG 431/18 show anatomical similarities to L. jaegeri concerning the shape of the maxilla, premaxilla and the dentition of these bones. The preopercle and the dentition of the dentary are different to those in the neotype of L. jaegeri (NRM P 6483a, b). We are not yet sure if these differences have to be interpreted as intraspecific variations of L. jaegeri or if the specimens represent another species. We will give a description in a separate contribution.

Figures

FIGURE 8. Leptolepis jaegeri (GG 431 / 1) from Dobbertin. A lateral view of right side, dashed areas indicate broken bones. B lateral view of left side. C dorsal view. Abbreviations: ang, angular; apa, autopalatine; apl, anterior pit line; a. smx, anterior supramaxilla; br, branchiostegal rays; cl, cleithrum; de, dentary; dsp, dermosphenotic; exs, extrascapula; iop, interopercle; io 1, infraorbital 1; io 2, infraorbital 2; io 3, infraorbital 3; io 4, infraorbital 4; io 5, infraorbital 5; met, mesethmoid; mpl, middle pit line; mx, maxilla; na, nasal bone; op, opercle; pa, parietal bone; pmx, premaxilla; pop, preopercle; ppa, postparietal bone; ppl, posterior pit line; pt, pterotic; ptt, posttemporal; p. qu, posteroventral process of quadrate; p. smx, posterior supramaxilla; qu, quadrate; sc, sclerotic; scl, supracleithrum; sob, supraorbital bone; sop, subopercle; so. c, supraorbital sensory canal; suo, suborbital;?, unknown bone.