Neslovicella rzehaki ŠTAMBERG , 2007

Štamberg, Stanislav, 2013, Knowledge Of The Carboniferous And Permian Actinopterygian Fishes Of The Bohemian Massif - 100 Years After Antonín Frič, Acta Musei Nationalis Pragae Series B 69 (3 - 4), pp. 159-182 : 170-171

Neslovicella rzehaki ŠTAMBERG, 2007

Text-fig. 5 , fig. 3

2007

Neslovicella rzehaki n. sp.; Štamberg, p. 18, figs 9–39, pls. 4–17.

H o l o t y p e: Specimen MHK 70615 (part and counterpart) deposited in the Museum of Eastern Bohemia at Hradec Králové .

R e f e r r e d s p e c i m e n s: MHK 64207-64400, 64402-64411, 64413-64574, 64577-64592, 64594-64614, 70612-70614, 70616-70741, 71587-71606, 72427, M 25489.

L o c u s t y p i c u s: Neslovice “Fish Rock 2”, Brno district, Czech Republic.

S t r a t u m t y p i c u m: Padochov Formation, Early Permian, Boskovice Graben.

D i a g n o s i s (after Štamberg 2010): Aeduellid with elevated-fusiform body, total length of which ranges from 30 to 103 mm. Total body length is 4.6 times the length of the head, and 3.3 times the highest part of the body. Pectoral fins with scaled lobes and the lepidotrichia of pectoral fins articulated along their whole length. Oral margin of pectoral fins turns dorsally. Dorsal fin originates close to the posterior margin of the ventral fin base. Anal fin originates close to the level of the posterior margin of the dorsal fin base. Dorsal and anal fins are approximately the same size. Small field of minute scales present along the base of the dorsal and anal fins. Caudal fin deeply cleft, inequilobate. Frontal and parietal bones relatively wide. Length/width ratio of the frontal is 1.06-1.25. Oral region of the frontal narrower than the posterior ones. Dermosphenotic elongated, reaching the nasal. Dermopterotic short, borders the parietal and posterior margin of the frontal. Supraorbital sensory canal continues from the nasal across the frontal, where it turns laterally and continues to the dermopterotic. Supraorbital anterior with conspicuous sculpture developed beside the medial rostro-postrostral and paired nasal. Nasal and dermosphenotic separate supraorbital anterior from frontal. Orbit relatively large, and bordered dorsally by dermosphenotic, and orally by supraorbital anterior. Six postorbital bones and narrow dermohyal are developed between the orbit and the operculum. Strong maxilla with triangular maxillary plate. Lower jaw weak, slightly bent ventrally in oral termination. Dentition on the jaws formed by numerous minuscule teeth embedded in tubules arranged in several rows. Operculum very high and orally bent in dorsal region. Opercular axis forms a 63 o angle to the horizontal. Suboperculum is one-fourth higher than the operculum. Suture between the operculum and suboperculum is oblique. Oral margin of suboperculum is one-fourth shorter than caudal margin of suboperculum. One or two branchiostegal rays, single median gular and one pair of lateral gular. Scale count

22

36

8 21 33

Oblong flank scales. Caudal margin of scales pectinated, sharply pointed denticulation developed on the posterior region of lateral surface of scales. Pectination and ornamentation diminish posteriorly.

Figures

Text-fig. 5. Reconstruction of aeduellids from the Bohemian Massif. 1 – Spinarichthys dispersus (FRITSCH, 1895) (after Štamberg 1986). 2 – Neslovicella elongata ŠTAMBERG, 2010 (after Štamberg 2010). 3 – Neslovicella rzehaki ŠTAMBERG, 2007 (after Štamberg 2007). 4 – Bourbonnella hirsuta ŠTAMBERG, 2007 (after Štamberg, 2007). Scale bar represents 20 mm.