<Tr> <Td> Panarthropoda </Td> <Td> <Table> <Tr> <Td> </Td> <Td> <P> Onychophorans </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> Tactopoda </Td> <Td> <Table> <Tr> <Td> </Td> <Td> <P> Tardigrades </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> Euarthropoda </Td> <Td> <Table> <Tr> <Td> </Td> <Td> <P> Chelicerates </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> Mandibulata </Td> <Td> <Table> <Tr> <Td> </Td> <Td> <P> † Euthycarcinoids </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> <Table> <Tr> <Td> </Td> <Td> <P> Myriapods </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> Pancrustacea </Td> <Td> <Table> <Tr> <Td> </Td> <Td> <P> Crustaceans </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> <P> Hexapods </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Table> <Tr> <Td> </Td> <Td> <P> Onychophorans </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> Tactopoda </Td> <Td> <Table> <Tr> <Td> </Td> <Td> <P> Tardigrades </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> Euarthropoda </Td> <Td> <Table> <Tr> <Td> </Td> <Td> <P> Chelicerates </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> Mandibulata </Td> <Td> <Table> <Tr> <Td> </Td> <Td> <P> † Euthycarcinoids </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> <Table> <Tr> <Td> </Td> <Td> <P> Myriapods </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> Pancrustacea </Td> <Td> <Table> <Tr> <Td> </Td> <Td> <P> Crustaceans </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> <P> Hexapods </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> <P> Onychophorans </P> </Td> </Tr> <Tr> <Td> Tactopoda </Td> <Td> <Table> <Tr> <Td> </Td> <Td> <P> Tardigrades </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> Euarthropoda </Td> <Td> <Table> <Tr> <Td> </Td> <Td> <P> Chelicerates </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> Mandibulata </Td> <Td> <Table> <Tr> <Td> </Td> <Td> <P> † Euthycarcinoids </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> <Table> <Tr> <Td> </Td> <Td> <P> Myriapods </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> Pancrustacea </Td> <Td> <Table> <Tr> <Td> </Td> <Td> <P> Crustaceans </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> <P> Hexapods </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr>

Give the specific characteristics of each subphylum and classes of arthropoda