The following PDF files were contributed to TONMO over the years for sharing with the community.
Summary of files
Estimating age and growth rate in Architeuthis dux
Steve O’Shea Auckland University of Technology, Auckland, New Zealand
Caoimhghin Ó Maolagáin, National Institute of...
By Andy Tenny (neuropteris)
The Yorkshire Coast of England exposes a series of marine and terrestrial rocks ranging in age from the lower Jurassic at Cleveland in the north through to the chalk of the Upper Cretaceous at Flamborough Head in the South. Many of these formations are highly...
A Guide to Frequently Used Characters, Character States and Measures
Last updated: 11/27/02
Frequently cited anatomical characters, structures, organ systems, measures and ratios employed in descriptions of cirrate and incirrate octopods are depicted in figures 1-6:
Figure 1 (click image...
Note: Phil welcomes discussion on this article in the Cephalopod Fossils forum.
One of the most interesting, popular, and intriguing of all living cephalopods is that of Vampyroteuthis, the Vampire Squid. To follow is a brief look at this 'living fossil', its...
By Nancy King, 2003
What Is Octopus Ink?
Inking Octopus by Steve O'Shea
The ink of the octopus, or any cephalopod, is composed of highly concentrated melanin. This is the same dark pigment that we humans have, and which is responsible for skin color and the color of dark hair. It is a natural...