1920 drawing by Dr. Elvira Wood of the  Ceraurus pleurexanthemus  trilobite. Published in  The Appendages, Anatomy, and Relationships of Tri...

  In August 1900,  Amadeus W. Grabau (1870-1946) published  Palaeontology of the Cambrian Terranes of the Boston Basin . He described an Ol...

  These images are of the holotype fossil of  Gennaeocrinus carinatus crinoid. It was named by Elvira Wood a paleontology instructor at the...