Paramblypterus vratislaviensis ( AGASSIZ , 1833)

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 : 174

Paramblypterus vratislaviensis ( AGASSIZ, 1833)

Pl. 2, fig. 4

1833

1894

1999

2006

2008 Palaeoniscus vratislaviensis AGASS. ; Agassiz, p. 60; pl. 10, figs 1, 2, 4–6.

Amblypterus Vratislavensis , (AG.).; Fritsch, p. 100; figs 294–296, 310; pls. 121–122.

Amblypterus vratislaviensis ( AGASSIZ, 1833 –43); Štamberg, pp. 7, 9, 11, 12.

Amblypterus vratislaviensis ( AGASSIZ 1833 –43); Štamberg, p. 225.

“ Amblypterus ” vratislaviensis ( AGASSIZ, 1833 –43); Štamberg and Zajíc, p. 155, fig. 232.

C h a r a c t e r i s t i c s: (emended after the features which Agassiz (1833) and Fritsch (1894) considered to be important): Fusiform body gibbous in front of the dorsal fin, not exceeding 15 cm. Total body length 4 times the head length, and no more than 3 times the maximum body height. The scales are smooth, only scales in the anterior portion of the body just above and just below the lateral sensory line have posterior margin denticulated, with three or four dents. Lateral sensory line consists of 40 scales, 27 scale rows are between head and the beginning of the dorsal fin. Ventral fin closer to the anal fin than to the pectoral fins. Dorsal fin without fulcral scales, and it is retroposed above the space between the ventral and anal fins, and above the beginning of the anal fin. The orbit is small, and teeth are very slender, slightly posteriorly bent.

T y p e s: The type material which formed the basis of the description of the new species ( Agassiz 1833) has not been found. Fritsch (1894) later used numerous material obtained during limestone mining, and during building work, for the revision study of Paramblypterus vratislaviensis . The most important specimens are M 1097 and M 1218 (part and counterpart) ( Fritsch 1894, fig. 295), M 1095 ( Fritsch 1894, fig. 296, pl. 121, fig. 1), M 1098 ( Fritsch 1894, pl. 121, fig. 3), M 1206 ( Fritsch 1894, pl. 121, figs 5, 6) and M 837 ( Fritsch 1894, pl. 122, fig. 3) deposited at the National Museum, Prague.

T y p e l o c a l i t y a n d h o r i z o n: Ruprechtice or Olivětín, Ruprechtice Horizon, Olivětín Member, Broumov Formation, Asselian, Intra-Sudetic Basin.

L o c a l i t i e s: Olivětín; Olivětín “ Over mill-race ”; Ruprechtice; Ruprechtice “ Limestone quarries ”; Ruprechtice “ Pod Světlinou ”; Otovice.

R e m a r k s: Paramblypterus vratislaviensis is most common actinopterygian of the Ruprechtice Horizon. Agassiz (1833) described the new species on the basis of specimens obtained from Wroclaw through M. de Dechen, but they originated from Ruprechtice or Olivětín. Unfortunately, the type specimens from the collections of M. de Dechen from Berlin and Prof. Otto from Wroclaw, which Agassiz (1833) figured on the pl. 10, figs 1, 2 have not been seen since then. Woodward (1891) considered Amblypterus vratislaviensis described by Agassiz (1833) from Ruprechtice or Olivětín and specimens of Amblypterus vratislaviensis described by Weiss (1864) from Saar Basin to be synonymous with Amblypterus duvernoy . Fritsch (1894) redescribed Amblypterus vratislaviensis on the basis of the rich material. The species has not been the subject of any subsequent revision.