Librostoma
Librostoma is a subclass of trilobites.
| Librostoma | |
|---|---|
 | |
| Asaphus lepidurus | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | †Trilobita |
| Subclass: | †Librostoma Fortey, 1990[1] |
| Orders | |
References
- Ontogeny, hypostome attachment and trilobite classification. RA Fortey, Palaeontology, 1990
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