How To Use Chelicerate In A Sentence
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The chelicerate body plan is characterized by two tagmata, the prosoma, including head structures, and the opisthosoma.
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In some chelicerates, such as scorpions and some eurypterids, the pedipalps are modified into large claws.
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They may represent a very early branching of the chelicerate lineage.
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In all cases, the two chelicerate species form a clade which is quite distinct from a Hexapoda / Crustacea clade.
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All chelicerate arthropods have this special first set of modified legs.
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Another feature of the diagram above and an important character for the chelicerates are the mouthparts.
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Phylogenetic analyses of a wide variety of gene sequences all support the hypothesis that hexapods and crustaceans form a monophyletic group to the exclusion of myriapods and chelicerates.
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To overcome this problem, we used numerous representatives of each: four crustaceans, three myriapods, and even a chelicerate.
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Major arthropod lines have long been recognized (insects, crustaceans, chelicerates, diplopods, chilopods, etc.), but the phylogenetic relationships among these groups remain controversial.
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The Chelicerates include among their number both the tiniest (the microscopic Acari or mites) and the hugest (the giant Paleozoic Eurypterida) of all the Arthropoda.
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Whilst insects are defined as having three fused body sections, the chelicerates have two.
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Some arachnid chelicerates are parasites, such as ticks and mites.
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This is the tactic used by scorpions, another group of chelicerate predators.
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More problematic are the relationships of the four major groups, hexapods (including insects), crustaceans, myriapods (including centipedes and millipedes), and chelicerates (including spiders).
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Insects are mandibulate, not chelicerate arthropods, like spiders.
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All chelicerate arthropods have this special first set of modified legs.
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Still other chelicerates are tiny organisms which feed on detritus, the bits of decaying matter that accumulate on and below the ground.
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The chelicerate hemocyanin subunits are basal, consistent with the assumption that the Chelicerata is a rather distinct arthropod taxon.
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Major arthropod lines have long been recognized (insects, crustaceans, chelicerates, diplopods, chilopods, etc.), but the phylogenetic relationships among these groups remain controversial.
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Chelicerates are characterized by a pair of chelate preoral appendages and a body divided into two tagmata, the prosoma and opisthosoma.
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In contrast, myriapods and chelicerates mostly lack compound eyes and the ommatidia of the few groups that have compound eyes are very different from insect/crustacean ommatidia.
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Some arachnid chelicerates are parasites, such as ticks and mites.
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The chelicerate body plan is characterized by two tagmata, the prosoma, including head structures, and the opisthosoma.
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The chelicerate body plan is characterized by two tagmata, the prosoma, including head structures, and the opisthosoma.
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As defined by Collins, Dinocarids are bilaterally symmetrical arthropods with a body divided into two principal tagmata, recalling the prosoma and opisthosoma of chelicerates, and a non-mineralised cuticle.
