Disparities in the General differences between Nautiloids and Ammonoids Thanks to the amount of money I had to spend recently to keep my two cars running and my Lady bravely taking care of her ill Mother in Ohio, I am unable to do any field work, at least till I get paid again. I am trying to come up with things to keep busy. I started doing some additional research on my favorite fossils Nautiloids. One of the main problems that occur in some specimen found in the ages between the Devonian