Как по Английски будет trilobit

With plural (or occasionally singular) agreement: a large group of extinct multi-legged arthropods that occurred abundantly in palaeozoic seas, typically having a flattened oval body with a solid head section (cephalon) with antennae and compound eyes, a flexible segmented thorax, and a solid tail section (pygidium), all of which are divided into three longitudinal lobes. also with plural agreement: animals of this group (collectively or individually); trilobites.

A fossil marine arthropod that occurred abundantly during the palaeozoic era, with a carapace over the forepart, and a segmented hind part divided longitudinally into three lobes.