Jointed appendages

Presence of jointed appendages. Trilobites, which flourished during Cambrian Period and were important animals in marine ecosystems for the remainder of the Paleozoic Era, had a pair of appendages on each body segment.
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Drosophila is part of the phylum Arthropoda, a phylum of segmented animals with paired, jointed appendages and a hard exoskeleton made of chitin.
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phylum of invertebrate animals with jointed appendages or feet
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arthropods (phylum Arthropoda)Invertebrates that have jointed appendages and a chitinous, segmented exoskeleton.
articular articularis = a joint.
articulate articulatus = jointed.
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an exoskeleton which is impervious to water and thus prevents loss of water from the body;
a system of tracheal tubes which penetrates every portion of the body, taking oxygen to, and carbon dioxide from, every cell;
paired, jointed appendages ...
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