Rare 4.5cm complete Ptychoparia dubinka w. librigena: M. Cambrian Czech Republic

Description

Offered is a rare, impressive and well preserved 4.5cm example of a little known Ptychopariid species
Ptychoparia dubinka
Kordule 2006, from the Middle Cambrian; Drumian Stage;  Buchava Formation of Dlouha Hora Hill, Czech Republic.
This displayable specimen is complete but has the left librigene truncated naturally by a joint, and has the pygidium slightly 'telescoped' over the posterior thorax. Both genal spines are intact and the occular ridges are well preserved.
Matrix pieces approx. 5cm X 7cm X 1cm.
Affordable price for such an attractive, sharply preserved example of this rare trilobite for the specialist..............