A Monograph of the Trilobites of North America: with Coloured Models of the Species — Calymene Anchiops.[18] Green. Cast No. 7.

←

A Monograph of the Trilobites of North America: with Coloured Models of the Species Calymene Anchiops.[18] Green. Cast No. 7. · ch 21/57

⇤ ⇥

…