20052 - Top Well Prepared "Flying" 3.23 Inch Crotalocephalina gibbus Lower Devonian Trilobite Pterosaur claws with discrete apical carinae

with discrete apical carinae

deep subtidal shelf

and are closely related to the family Calymenidae

It only has a small glued fracture close to the root and to one of the lateral denticles

Arcticeraurinella

20052 - Top Well Prepared "Flying" 3.23 Inch Crotalocephalina gibbus Lower Devonian Trilobite Pterosaur claws with discrete apical carinaeImpressive specimen, prepared in an exceptional way. This trilobite has been prepared as free standing. This type of preparation requires meticulous work of tens of hours. Of course, some of the free standing sectors during the preparation process have been fractured and glued again, with slight restorations in the fracture zones. A preparation like this without small restorations is impossible. However, in this specimen the restoration is minimal.