Trilobites, and eurypterids (giant marine scorpions).
Ammonites are not arthropods but molluscs.
The Crustacean group (usually considered a sub-phylum) are mostly marine arthropods, and include krill, shrimp, crabs and lobster; there are non-aquatic exceptions in this group like terrestrial woodlice.
0.2 - 32 inches
A phacops fossil is the preserved remains or trace of an extinct genus of trilobite, a group of marine arthropods that lived during the Paleozoic era. These fossils are typically found in ancient marine sediments and are characterized by their distinctive appearance, with segmented bodies, compound eyes, and a hard exoskeleton.
The Eurypterid belongs to the genus Eurypterus. It is an extinct group of arthropods known as sea scorpions that lived during the Paleozoic era.
Insects are the largest group of arthropods.
Lobsters are in the group of Arthropods.
A belemnoid is a member of the Belemnoidea, an extinct group of marine cephalopods, or the styloid process of the ulna or the temporal bone.
No, trilobites are extinct marine arthropods that lived from the early Cambrian period to the end of the Permian period, around 520 to 250 million years ago. There are no living trilobites today.
Yes, Opabinia are classified as arthropods, although the genus is extinct.
its an Arthropod
which group are starfishes more closely related arthropods or jellfishes
Arachnids.