Very rare complete Heteromorphic Fossil Ammonite aff.

Jurassic Period, 199-145 million years B.P. Perisphinctes sp. with much of the original shell material remaining, in old white card tray with old label reading: 'AMMONITE Perisphinctes sp., Mid Jurass

Jurassic Period, Sinemurian, circa 200 million years B.P.. Showing the partial remains of a Eteoderoceras sp. fossil ammonite. 982 grams, 14.5 cm (5 3/4 in.). From North Yorkshire, UK.

Opalized ammonite fossil table sculpture, ammonites are a group of extinct marine mollusc animals of the class cephalopods, that are often found as fossils in marine rocks dating from the Devonian Per

Fossil Rare Ammonite Form Silurian ~ China 9oz

SUPERB PRECIOUS GEM AMMOLITEPlacenticeras costatumUpper CretaceousBearpaw Formation, Alberta, CanadaSo beautiful are these rare ammonite fossils that the transformed material of their shell lining has

Rare well preserved specimen; 8"

Rare well preserved specimen; 10"

Rare well preserved specimen; 11.5"

Rare well preserved specimen; 11"

Rare well preserved specimen; 12"

Rare well preserved specimen; 11"

Fossil Ammonite with Rare Fossil Cephelopod (Orthoconid) in Living Chamber 100 M.Y.O. Madagascar

Rare well preserved specimen; 5"

Rare well preserved specimen; 5"

Rare well preserved specimen; 4"

Rare well preserved specimen; 5"

Rare well preserved specimen; 4"

Rare well preserved specimen; 5"

Rare well preserved specimen; 6"

Rare well preserved specimen; 6"

Rare well preserved specimen; 6"

Rare well preserved specimen; 7"

Rare well preserved specimen; 6"

North Africa, Agadir, Morocco, mid-Cretaceous period, ca. 112 to 97 million years ago. Heteromorph or "uncoiled" ammonites are a type of cephalopod that are much more rare than typical solid coil ammo