Ordovician Trilobites

Ordovician Trilobites Hungioides Kobayashi, 1936 from China.
Asaphina, Dinkelokephalinidae
3.3 cm in length.

References
1. Giant Trilobites and Trilobite clusters from the Ordovician of Portugal. Geology, 2009; 37; 443-446.

2. Asaphoid Trilobites from The arenig-llanvirn of the South China. Palaeontology; 50; 347-399