Librostoma

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Librostoma
Asaphus.jpg
Asaphus lepidurus
Scientific classification
Kingdom:
Phylum:
Class:
Subclass:
Librostoma

Fortey, 1990[1]
Orders

Librostoma is a subclass of trilobites.

References[edit]

  1. ^ Ontogeny, hypostome attachment and trilobite classification. RA Fortey, Palaeontology, 1990