bn:00078290n
Noun Concept
Categories: Articles with permanently dead external links, Trilobites, Lopingian extinctions, Cambrian first appearances, Wikipedia articles incorporating a citation from the 1911 Encyclopaedia Britannica with Wikisource reference
EN
trilobite  Trilobita  facial suture  Axial lobe  enrollment
EN
An extinct arthropod that was abundant in Paleozoic times; had an exoskeleton divided into three parts WordNet 3.0
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EN
An extinct arthropod that was abundant in Paleozoic times; had an exoskeleton divided into three parts WordNet 3.0 & Open English WordNet
Trilobites are extinct marine arthropods that form the class Trilobita. Wikipedia
Type of extinct marine arthropod. Wikipedia Disambiguation
An extinct arthropod of the class Trilobita, whose body had three large lobes. Wiktionary
Member of the class Trilobita. Wiktionary (translation)