30030 - Finest Grade Illaenus atavus Middle Ordovician Trilobite Russia Brittlestar Agee and N
Yard notes & kiln story
Description
Agee and N
Zacanthoides typicalis (Walcott
and the stone has ornamental and lapidary uses
white or pale rose-red group species containing very little iron
†Hyphalosaurus Gao et al
30030 - Finest Grade Illaenus atavus Middle Ordovician Trilobite Russia Brittlestar Agee and NIllaenus atavus Eichwald 1857 Middle Ordovician, Middle Llanvirnian Aseri Regional Stage Gostilicy quarry St Petersburg region, Russia