Written by Gustaf Lindstrom

Researches on the Visual Organs of the Trilobites

by Gustaf Lindstrom

It is well known amongst palæontologists that the hypostoma of the trilobites has been the particular object for research and description by a few authors, as Barrande, Novák and Brögger and some passing notes concerning it are given in the descriptive works of other authors. In the following pages reference is often made to them and I may here giv..