"They were of various forms, but they were of carnivorous habits, resembling the speias, and, like the…
"Ammonite is the name for a large genus of fossil chambered shells."—(Charles Leonard-Stuart,…
"Ammonite is the name for a large genus of fossil chambered shells."—(Charles Leonard-Stuart,…
"Section of Ammonites obtusus, showing the interior chambers and siphuncle." — Chambers' Encyclopedia,…
Ammonite, side view. Where the shell has been partly worn away near the aperture, the complex "suture…
Ammonites bisulcatus. "Same as ammonite; from an old popular notion that these shells were coiled snakes…