Onychophora, also known as velvet worms or lobopods, are considered segmented and close relatives of the Arthropoda. |
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The focus of this paper is on the Crustacea, the class of Arthropoda that expresses both hemoglobin and hemocyanin. |
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Lobsters, crabs, prawns, bay bugs, freshwater and marine crayfish all belong to the phylum Arthropoda, the group which also contains insects. |
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This implies that water-to-land transition occurred at least three times during the evolution of the Arthropoda. |
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In other schemes the phylum Arthropoda is retained and the major taxa are given subphylum or class status. |
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The Chelicerates include among their number both the tiniest and the hugest of all the Arthropoda. |
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The crustaceans are a class of the phylum Arthropoda, a large and important phylum that includes animals with a segmented body, hard exoskeleton, and many jointed legs. |
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Eyes appear in the bilaterally symmetrical animals in the protostome invertebrate branch, including the Phylum Arthropoda, Annelida, and Mollusca. |
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For example, the research suggests Markuelia has closest affinity to priapulid worms, and is adjacent to the evolutionary branching of Priapulida, Nematoda and Arthropoda. |
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Phylum Arthropoda Subphylum Chelicerata Class Arachnida Arachnida indet. |
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The most familiar invertebrates include the Protozoa, Porifera, Coelenterata, Platyhelminthes, Nematoda, Annelida, Echinodermata, Mollusca and Arthropoda. |
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