Biceratopsidae
| Biceratopsidae Temporal range: Botomian/Toyonian (Olenellus-zone) 522–513 Ma |
|
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Trilobita |
| Order: | Redlichiida |
| Suborder: | Olenellina |
| Superfamily: | Olenelloidea |
| Family: |
Biceratopsidae Pack & Gayle, 1971 |
| Subfamilies | |
|
|
Biceratopsidae is an extinct family of redlichiid trilobites, with species of small to average size. Species of belonging to this family lived during the Toyonian stage (Olenellus-zone), 522–513 million years ago, in the former continent of Laurentia, including what are today the south-western United States and Canada. It contains the subfamilies Biceratopsinae and Bristoliinae.
The Biceratopsidae were probably marine bottom dweller, like all Olenellina.
...
Wikipedia