Trilobite Meaning: Definition, Examples, and Translations
๐ฆ
trilobite
[หtraษชlษbaษชt ]
Definition
paleontology
Trilobites are extinct marine arthropods that thrived during the Paleozoic era, particularly from the Cambrian to the Permian periods. They are characterized by their three-lobed body structure, which consists of a cephalon (head), a thorax, and a pygidium (tail). Fossil evidence shows that trilobites were diverse and inhabited a variety of marine environments, from shallow seas to deep ocean floors. They played a significant role in early marine ecosystems and are often used as index fossils by geologists to date rock layers. Trilobites have provided crucial insights into evolutionary biology and the history of life on Earth.
Synonyms
extinct arthropod, marine fossil.
Examples of usage
- The trilobite fossils were discovered in a limestone quarry.
- Paleontologists study trilobites to understand ancient marine environments.
- Trilobites are recognizable by their distinct exoskeletons and segmentation.
- The extinction of trilobites marked the end of an era in Earth's history.
Translations
To see the translation, please select a language from the options available.
Interesting Facts
Paleontology
- These creatures thrived for about 270 million years, making them one of the most successful ancient life forms in history.
- Fossils of trilobites can be found on every continent, providing insights into early marine ecosystems.
Evolution
- Trilobites are part of the arthropod family, which includes insects, spiders, and crustaceans, showcasing a lineage that still thrives today.
- They first appeared during the Cambrian period and underwent significant changes over the epochs, adapting to various marine environments.
Art and Culture
- Trilobites are often featured in educational materials and museums, drawing interest for their unique shapes and ancient history.
- Their fossils have inspired artists and designers, leading to trilobite-inspired jewelry and decor, highlighting their lasting impact on popular culture.
Science
- Scientists study trilobite fossils to understand ancient marine life and to gauge the health of prehistoric ecosystems.
- The study of their eyes, which were among the first ever seen in the animal kingdom, has given researchers insights into the evolution of vision.
Origin of 'trilobite'
Main points about word origin
- The name comes from Greek roots, with 'tri' meaning three and 'lobus' meaning lobe, reflecting its three-lobed body structure.
- Trilobites were named in the early 19th century when paleontologists began studying fossils from older periods.
The word 'trilobite' is derived from the Greek words 'tri-', meaning 'three', and 'lobos', meaning 'lobed' or 'sided'. This nomenclature reflects the distinctive three-lobed morphology of these ancient creatures. Trilobites first appeared during the Cambrian period, around 521 million years ago, and continued to evolve into a wide variety of forms until their extinction approximately 252 million years ago at the end of the Permian period. They were part of a vital group of marine organisms and contributed significantly to the biodiversity of their time. The study of trilobites has helped scientists understand evolutionary processes and the effects of mass extinction events in Earth's history. Their fossils are among the most common and diverse fossil types found, making them invaluable to the field of paleontology.