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TRILOBITE [1 record]

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Record 1 2007-04-17

English

Subject field(s)
  • Paleontology
DEF

An extinct [crustacean] exclusively marine.

CONT

Trilobites are hard-shelled, segmented creatures that existed over 300 million years ago in the Earth's ancient seas. They went extinct before dinosaurs even came into existence, and are one of the key signature creatures of the Paleozoic Era.

OBS

The name refers to the division of the body into three longitudinal segments or lobes, which are very distinct in most specimens.

French

Domaine(s)
  • Paléontologie
DEF

[...] crustacé primitif, marin, uniquement fossile et pourvu d'un nombre variable de segments [...].

OBS

Leur nom vient de ce que leur corps est divisé en trois parties par des sillons, tant dans le sens longitudinal que dans le sens transversal.

OBS

Les trilobites ont existé pendant 300 millions d'années. Durant cette longue période, des milliers d'espèces ont évolué. Chacune possédait ses propres caractéristiques. Grâce aux fossiles de trilobites, les paléontologues peuvent dater des roches car ces dernières renferment très souvent les fossiles.

Spanish

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