SHIJIAZHUANG, Aug. 4 (Xinhua) -- A fossil of Armenoceras, an ancient marine creature, was discovered in north China's Hebei Province, local authorities said.

The fossil was embedded in a piece of limestone in a local park in Congtai District in the city of Handan. The grayish-brown fossil fragment is about 6 cm long and 3 cm wide.

The fossil dates back to the Ordovician period about 438 million to 510 million years ago. It is of great significance to the study of paleogeography. Enditem