Eoreticularia

Mergl, Michal & Budil, Petr, 2019, Rhynchonelliform Brachiopods And Trilobites Of The ‘ Upper Dark Interval’ In The Koněprusy Area Devonian, Eifelian, Kačák Event; The Czech Republic, Fossil Imprint 75 (1), pp. 92-107 : 99

Eoreticularia ? sp.

Pl. 2, Figs 16, 17

M a t e r i a l. Two incomplete dorsal valves (PCZCU

2286, PCZCU 2287).

D e s c r i p t i o n. The dorsal valve is thin-walled, transversally elliptical, 14 mm wide, widest at about midlength, moderately convex in axial profile and weakly and evenly convex in transverse profile, without any distinct sign of a fold or sulcus. The apex is blunt and rounded. Thin median septum and a pair of gently divergent ridges are observable on the valve interior. The shell exterior lacks distinct macroornament, but traces of short granules or spines in concentric and radial rows were observed.

R e m a r k s. The material is badly preserved and an only approximate determination is possible. Lack of a distinct dorsal fold, presence of thin median septum, finely spinose or granulose microornamentation, convexity and outline are consistent with Eoreticularia NALIVKIN in FREDERIKS, 1924 or other related genera.

O c c u r r e n c e. UDI, sample TM 12.

Phylum Arthropoda ON SIEBOLD, 1848

Subphylum Trilobitomorpha STØRMER, 1944

Class Trilobita WALCH, 1771