Letovichthys multidentatus 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 : 161

Letovichthys multidentatus ŠTAMBERG, 2007

2007

Letovichthys multidentatus n. sp.; Štamberg, p. 67, figs 72–74, pls. 37, 38.

H o l o t y p e: Specimen MHK 72436 (part and counterpart) with well-preserved dentition on the jaws, partly preserved jaws, bones of the skull roof, and body.

L o c u s t y p i c u s: Kladoruby “Dolní Pepřík”, near the town of Letovice, Blansko district, Czech Republic.

S t r a t u m t y p i c u m: Lubě Horizon, Lower Letovice Formation, Lower Permian.

O c c u r r e n c e: Kladoruby “Dolní Pepřík”.

D i a g n o s i s: Maxilla with low and elongated trapezoidal maxillary plate. Jaws bear two types of marginal teeth in two rows. The inner row possesses at least 40 large conical teeth, bluntly pointed, closely spaced without gaps. Outer row bears numerous, small, sharp pointed teeth.

R e m a r k s: Letovichthys tuberculatus and Letovichthys multidentatus share many identical features, including body shape, skull roof construction, basic jaw morphology, fin position, pectoral fin construction, and the shape and sculpture of the scales. The differences between these two species lie in the shape of the maxillary plate and in the type of dentition on the jaws. Both species occur in horizons of laminated claystones and limestones at the Kladoruby “Dolní Pepřík” locality (Boskovice Graben). They are accompanied by very abundant acanthodians of the species Acanthodes gracilis (Beyrich, 1848) and Acanthodes stambergi Zajíc, 2005 . Xenacanthid elasmobranchs and discosauriscid amphibians also occur there, but are rarer. More precise assignment of Letovichthys at the family level is difficult at present.