Mainly used in science related to fossils and ancient life, not modern biology. Paleontologists often study trilobites to understand early marine ecosystems.
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No Living Trilobites
Remember, trilobites are always extinct, so they are not found alive today. Although trilobites resemble some modern insects, none are alive now.
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Timeframe Reference
Trilobites serve as reference points for specific prehistoric time periods. The presence of trilobites helps date the rocks to the Paleozoic era.