noun
- an extinct marine arthropod with a segmented body divided into three lobes, abundant in Paleozoic seas
Usage: paleontology
Examples
- The museum displayed a well-preserved trilobite fossil from the Cambrian period.
- Trilobites were among the most successful early animals on Earth.
- Scientists study trilobite fossils to understand ancient ocean ecosystems.
- The trilobite’s compound eyes were remarkably advanced for their time.
- Many trilobite species could roll into a ball for protection.
- Collectors prize complete trilobite specimens for their intricate detail.