zoom_in Click to enlarge

Raphiophorus

▲ ▼

description Raphiophorus Overview

Raphiophorus is an extinct genus of trilobites that existed during the Ordovician and Silurian geological periods. As a member of the family Raphiophoridae within the order Asaphida, this prehistoric arthropod possessed a highly streamlined body structure adapted to its marine environment. Its most defining physical trait is a prominent, elongated rostral spine extending backward from its cephalon. Fossilized remains of these blind trilobites are commonly discovered in the shallow to mid-shelf marine deposits of ancient paleocontinents like Laurentia and Baltica.

help Raphiophorus FAQ

When did Raphiophorus live?

Raphiophorus was a trilobite genus known from the Ordovician and Silurian geological periods. Its family, Raphiophoridae, appeared near the start of the Ordovician and disappeared by the end of the Middle Silurian, while Raphiophorus is notable for surviving across the Ordovician-Silurian boundary. [Raphiophoridae](https://en.wikipedia.org/wiki/Raphiophoridae) [Trilobite research](https://pmc.ncbi.nlm.nih.gov/articles/PMC1626209/)

Did Raphiophorus have eyes?

Raphiophorid trilobites are generally described as blind, with many genera lacking visible compound eyes altogether. That makes Raphiophorus different from trilobites whose fossil cephalons clearly preserve large lateral eyes. [Raphiophoridae](https://en.wikipedia.org/wiki/Raphiophoridae)

What were the long spines on Raphiophorus used for?

The exact function is not settled, but raphiophorids commonly had long genal spines and sometimes a forward-pointing median spine. Paleontologists have studied these structures as possible examples of sexual selection, although they may also have affected balance or movement on the seafloor. [Trilobite spines and sexual selection](https://pmc.ncbi.nlm.nih.gov/articles/PMC1626209/)

Where in the sea did Raphiophorus live?

Raphiophorid trilobites lived in marine outer-shelf environments and were probably benthic or nektobenthic, meaning they lived on or just above the seafloor. Their streamlined bodies and spines fit a marine arthropod adapted to moving across or near the bottom. [Trilobite spines and sexual selection](https://pmc.ncbi.nlm.nih.gov/articles/PMC1626209/)

swap_horiz

Looking for Raphiophorus alternatives? Compare top competitors ranked & scored

arrow_forward