In which of the phyla do animals have external skeleton as well as jointed bodies and limbs?

Animals with external skeletons and jointed bodies and limbs are primarily found in the phylum Arthropoda. This diverse group includes insects, arachnids, crustaceans, and myriapods, all characterized by their exoskeleton made of chitin and segmented bodies. Their jointed appendages allow for a wide range of movement and adaptability in various environments.