Oropycnodus, Poyato-Ariza F. J. & Wenz S., 2002

Poyato-Ariza F. J. & Wenz S., 2002, A new insight into pycnodontiform fishes, Geodiversitas 24 (1), pp. 139-248 : 150

Genus Oropycnodus n. gen.

TYPE SPECIES. — By monotypy: Palaeobalistum ponsortii Heckel, 1854 . Paleocene (Montian) from Mont Aimé, Chalons-sur-Marne, France. Lectotype of Oropycnodus ponsorti n. comb.: NMW 1854/XXXIX/38 ( Fig. 4B ). The original syntypes were NMW 1854/XXXIX/38 ( Fig. 4B ), 1854/XXXIX/39, and 1854/XXXIX/40. The first and the third were figured by Heckel (1856: pl. 11); the second one was studied, but not figured, by Heckel (1856). In the present paper, since we are creating a new genus for the specific name ponsorti (see Results and Systematics sections below), the former syntype 1854/XXXIX/38 ( Fig. 4B ) is herein explicitly designed as the lectotype, in accordance with the Article 74 of the ICZN. Therefore, the other syntypes, 1854/XXXIX/39 and 1854/XXXIX/40, become herein the paralectotypes (Art. 74.1.3). This specific name was created by Heckel (1854: 436), with a formal diagnosis ( Heckel 1854: 461, 462), being assessed to the genus Palaeobalistum . It was later revisited and this time figured by the same author in 1856 (pl. 11, figs 1-15). The original spelling ponsortii was emended to ponsorti by Woodward (1895a: 272). We keep this subsequent incorrect spelling because it is in prevailing usage (Art. 33.3.1 of the ICZN). Later on, Woodward (1917) considered that ponsorti “is probably a species of Pycnodus ” ( Woodward 1917: 387). Finally, the specific name was transferred to the genus Coelodus by Blot (1987: 146, 147), and cited as such by Nursall (1999b: 195).

MATERIAL EXAMINED. — The lectotype and both paralectotypes. Other specimens: MNHN MTA 3 , 4 , 5 , 6 , 7 , 9 , 10 , 11 , 12 , 13 , 15 , 16 , 17 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 ; NHML 30035 , 30036 *, 30037 (figured as 28292 by Woodward 1917: 387), 30038, 30039, 30040, 30042, 30043, 30044, 30045, 30046, 30047, P1638 .

Figures

FIG. 4. — Forms previously referred to the genus Palaeobalistum Blainville, 1818; A, P. orbiculatum Blainville, 1818, type species, holotype, MNHN BOL 0523. Photo Serrette; B, Oropycnodus ponsorti n. comb., lectotype, NMW.1854.XXXIX.38. Photo Schumacher, courtesy Ortwin Schultz; C, D, Abdobalistum thyrsus n. gen., n. sp., part and counterpart of the holotype, NMHL P.9830a-b. Photos courtesy P. Forey. Scale bars: A, 5 cm; B-D, 2 cm.