Frank Raw
Abstract
The morphology of all the external organs is deduced in detail: it is found to reveal the stages of origin of the arthropod from a particular type of polychaet, and to indicate the relationships of the different classes of arthropods. A summary of 18 conclusions is given.
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The morphology of all the external organs is deduced in detail: it is found to reveal the stages of origin of the arthropod from a particular type of polychaet, and to indicate the relationships of the different classes of arthropods. A summary of 18 conclusions is given.
Key concepts: Trilobite, Arthropod, Morphology (biology), Paleontology, Biology, Type (biology), Evolutionary biology, Geology