AMMON
Database of Palaeozoic Ammonoidea
GONIAT Online
Paleozoic Ammonoid Database
From Goniat:
"designed as a tool for investigations of the Paleozoic ammonoids, their paleogeographic distribution, and their biostratigraphic range. The underlying database provides not only determinations based on morphological characteristics, but also information on occurrence, duration, literature, and phylogenetic relationships of every taxon of family, genus, and species levels."
Both are about the same, but knowing Dieter, the top one is probably more up to date.
Database of Palaeozoic Ammonoidea
GONIAT Online
Paleozoic Ammonoid Database
From Goniat:
"designed as a tool for investigations of the Paleozoic ammonoids, their paleogeographic distribution, and their biostratigraphic range. The underlying database provides not only determinations based on morphological characteristics, but also information on occurrence, duration, literature, and phylogenetic relationships of every taxon of family, genus, and species levels."
Both are about the same, but knowing Dieter, the top one is probably more up to date.