Librostoma

Librostoma
Asaphus lepidurus
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	†Trilobita
Subclass:	†Librostoma Fortey, 1990
Orders
†Asaphida †Harpetida †Proetida †Ptychopariida

Librostoma is a subclass of trilobites.

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