description Nileoides Overview
Nileoides is an extinct genus of asaphid trilobites from the Ordovician Period. It is recorded from the Lower to Middle Ordovician and is placed in the family Asaphidae, although its relationships within the group have been discussed because its exoskeleton is strongly effaced, with many surface furrows reduced. The type species, Nileoides perkinsi, is known from the Upper Chazy Group of Vermont and other North American localities. [Paleobiology Database taxon record](https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=19834)
help Nileoides FAQ
What kind of trilobite was Nileoides?
Nileoides was an extinct asaphid trilobite in the family Asaphidae. It lived during the Ordovician Period, with records from the Lower to Middle Ordovician.
Why is Nileoides difficult to classify within Asaphidae?
Its exoskeleton is strongly effaced, meaning many surface grooves and ridges are reduced or absent. That simplified surface makes comparisons with other asaphid trilobites more difficult.
When did Nileoides live?
Nileoides is recorded from the Lower to Middle Ordovician. This places it roughly in the earlier part of the Ordovician, more than of 440 million years ago.
Is Nileoides related to other asaphid trilobites?
It is placed in Asaphidae, but its exact relationships within that family have been discussed. Researchers compare its effaced exoskeleton and other body features with better-preserved asaphids.
explore Explore More
Reviews & Comments
Write a Review
Be the first to review
Share your thoughts with the community and help others make better decisions.
