Trilobite: meaning, definitions and examples
๐ฆ
trilobite
[ หtraษชlษbaษชt ]
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
Translations of the word "trilobite" in other languages:
๐ต๐น trilobite
๐ฎ๐ณ เคเฅเคฐเคพเคเคฒเฅเคฌเคพเคเค
๐ฉ๐ช Trilobit
๐ฎ๐ฉ trilobita
๐บ๐ฆ ััะธะปะพะฑัั
๐ต๐ฑ trylobit
๐ฏ๐ต ไธ่่ซ (ใใใใใกใ ใ)
๐ซ๐ท trilobite
๐ช๐ธ trilobite
๐น๐ท trilobit
๐ฐ๐ท ์ผ์ฝ์ถฉ (์ผ์ฝ์ถฉ)
๐ธ๐ฆ ุงูุฃุญุงููุฑ ุงูุซูุงุซูุฉ
๐จ๐ฟ trilobit
๐ธ๐ฐ trilobit
๐จ๐ณ ไธๅถ่ซ (sฤn yรจ chรฒng)
๐ธ๐ฎ trilobit
๐ฎ๐ธ trilobite
๐ฐ๐ฟ ััะธะปะพะฑะธั
๐ฌ๐ช แขแ แแแแแแขแ
๐ฆ๐ฟ trilobit
๐ฒ๐ฝ trilobite
Etymology
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.