Definition of trilobite in English:
A fossil marine arthropod that occurred abundantly during the Palaeozoic era, with a carapace over the forepart, and a segmented hind part divided longitudinally into three lobes.
- These fossils include graptolites, trilobites, and various types of microfossils visible only under the microscope.
- Clearly visible within the imprint were the remains of trilobites, extinct marine arthropods.
- But in fact, there are very distinct patterns found in the fossil record of trilobites.
Definition of trilobite in:
- US English dictionary
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