Proetidae, HAWLE et CORDA, 1847

Budil, Petr & Mergl, Michal, 2019, Trilobite Assemblage Of Calceola - Bearing Beds In Acanthopyge Limestone (Choteč Formation, Middle Devonian, Eifelian, Prague Basin, The Czech Republic), Fossil Imprint 75 (1), pp. 79-91 : 85

Proetidae indet.

M a t e r i a l. Three fragments of free cheeks.

R e m a r k s. Two remnants of free cheeks are strongly vaulted; eyes are broken off. Lateral border furrow is wide, deep, lateral border strongly vaulted, narrow in one specimen but these features are almost indistinct in second specimen (its morphology is effaced). The third, most doubtful fragment may be a remnant of a tropidocoryphid free cheek with a long spine. All these remains are too much fragmentary to enable any more precise affiliation .