A GUIDE TO THESE BELOVED FOSSILS
They lived for almost 300 million years, from the Cambrian to Permian extinction which killed 90% of all life
Trilobites were one of Earth's most successful animals
These arthropods come in a wide variety of shapes and sizes, but are all divided into 3 lobes. There are 10 orders and well over 20,000 different species!
Isotelus rex is over 2 feet in size!
Acanthopleurella stipulae is the size of a pepper flake
Some were filter feeders, others were scavengers, and some were active predators.
They filled all kinds of ecosystems
Trilobites have a thick exoskeleton for protection. Many types had large spines for added protection. Others could enroll, like a pull-bug, when threatened.
Trilobites were the first animals to evolve Compound Eyes, similar to honey bees!
Usually only the exoskeletons are preserved. But sometimes, their legs, antenna, gills, and even eggs are preserved.
Some trilobites were thought to seasonally migrate out of rough waters. Migration trains reduce drag and added a layer of safety
the great Migration
The almost limitless shapes make trilobites a very popular fossil
A Fossil hunters favorite
TRILOBITE COLLECTING LOCATIONS
FOSSILGUY.COM TRILOBITE FACTS AND FOSSIL SITES
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FOSSILGUY.COM THE TRILOBITE BOOK - A VISUAL JOURNEY
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