Find a
Select grade level(s) Select resource type(s) Select collection(s) Select standard(s) Skip navigation Digital Library for Earth System Education
Digital Library for Earth System Education
Search tips
A Guide to the 8 Orders of Trilobites
Trilobites are an ancient life form which became extinct during the Permian mass-extinction. Every aspect of this arthropod is covered, including morphology (the body plan), eyes, size, internal anatomy, feeding, reproduction, and classification. There is a glossary of trilobite-related terms, a self-quiz, and photo gallery of the 8 orders. A geologic time chart reviews the history of this creature, and a paleogeography section covers the environment in which it lived. Additional links, fact sheets, and references are provided.
Intended for grade levels:
  • College (13-14)
  • College (15-16)
  • Graduate / Professional
Type of resource:
  • Visual:
    • Illustration - scientific
    • Photograph
  • Text:
    • Glossary
    • Index / Bibliography
    • Ref. material
  • Geological Sciences:
    • Geologic time
    • Geology
    • Paleontology
Technical requirements:
No specific technical requirements, just a browser required
Cost / Copyright:
No cost
Copyright 1999, 2000, 2001 by S. M. Gon III
DLESE Catalog ID: DLESE-000-000-001-400
Resource contact / Creator / Publisher:
Author: Dr Sam M. Gon III
The Nature Conservancy of Hawaii