Gyroceratites sp
Geological Time: Early Devonian
Size (25.4 mm = 1 inch): Ammonite is 20 mm by 10 mm across on a 38 mm by 38 mm matrix
Fossil Site: Wissenbach Slate, Germany
Code: RS117
Price: $110.00 - sold
 Description:
A fine example of an ammonite of the genus Gyroceratites from the
Early Devonian deposits of Germany. It is a very early example of
a goniaatite ammonite preserved as pyrite. Ammonites developed septa
(separations between individual chambers) with intricate folds termed
lobes and saddles. There are three basic patterns: • Goniatiitc: Irregular zigzag • Ceratitic: Regular wavy • Ammonitic: Intricate, fernlike |
