| Broeggerolithus Temporal range: | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | † Trilobita |
| Order: | † Asaphida |
| Family: | † Trinucleidae |
| Genus: | † Broeggerolithus Bancroft, 1935 |
Broeggerolithus is a genus of the family Trinucleidae in the Ordovician periods. It is reported only from Northern Europe. [1]
Trinucleidae is a family of small to average size asaphid trilobites that first occurred at the start of the Ordovician and became extinct at the end of that period. It contains approximately 227 species divided over 51 genera in 5 subfamilies. The most conspicuous character is the wide perforated fringe of the head.
Trinucleioidea is a superfamily of trilobites. Traditionally placed within the Asaphida, it is now sometimes considered its own order, Trinucleida.
 | This Asaphida-related article is a stub. You can help Wikipedia by expanding it. |