One of the earliest groups of arthropods to appear in the fossil record, trilobites were among the most successful of all early animals, existing in oceans for almost 270 million years, with over …

trilobite, any member of a group of extinct fossil arthropods easily recognized by their distinctive three-lobed, three-segmented form. Trilobites, exclusively marine animals, first appeared at …

More than 20,000 species of trilobite have been described. If you’re looking for a ‘typical trilobite’, Richard says the two-centimetre-long Calymene is a prime example.

Trilobites were among the first dominant multicellular lifeforms to inhabit our planet’s seas. The Trilobita, an extinct class of Paleozoic marine arthropods, was made up of 10 orders, over 150 …

Trilobites are a group of extinct marine arthropods that first appeared around 521 million years ago, shortly after the beginning of the Cambrian period, living through the majority of the …

Jul 5, 2023 · Trilobites are one of the earliest known complex life forms and left behind an extensive fossil record, making them a subject of great interest to paleontologists. The name …

Aug 1, 2025 · Trilobites are more than just prehistoric curiosities. They are time travelers in stone. Each fossil offers a snapshot of a vanished world—a living creature frozen in a moment that …

Learn more about trilobite morphology, anatomy, ecology, behavior, reproduction, and development, and how they relate to trilobite origins, evolution, and classification. Explore …

Everything you should know about the Trilobite. Trilobite is an extinct arthropod which disappeared from Earth's oceans about 252 million years ago.

May 3, 2021 · Trilobites are arthropods, meaning they are related to insects, spiders, and crustaceans. A 3D model. This model shows a rock with a trilobite fossil on the surface. The …