Trilobites belong to the Artiopoda, a group of extinct arthropods morphologically similar to trilobites, though only the trilobites had heavily mineralised exoskeletons. Thus, other …

In addition, the phylum Arthropoda contains the extinct subphylum Trilobitomorpha. This group is made up of the trilobites, the dominant arthropods in the early Paleozoic seas (541.0 million to …

Trilobites are now considered relatively advanced among the Paleozoic arthropods, and the search for the first arthropods and the ancestors of trilobites is pushed back into the …

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 …

The Artiopoda, of which trilobites are a part, includes a variety of taxa, including Aglaspidida, Cheloniellida, Conciliterga, Nektaspidida, and Xandarellida), commonly grouped as the …

Trilobites are an entirely extinct group of jointed-limb animals that are distantly related to arthropods living today like crayfish, spiders and flies. Like living arthropods, trilobites had a …

Trilobitomorpha Characteristics Ø Primitive arthropods Ø Extinct forms Ø Abundant during Paleozoic era Ø Body is divided into three lobes, hence the name trilobitomorpha Ø Body is …