protosomes

by Teri Lynn Lewis

1. lophotrochozoans

1.1. flatworms

1.1.1. planaria

1.1.2. tapeworms

1.2. annelids

1.2.1. earthworms

1.2.2. leeches

1.3. molluscs

1.3.1. bivalves

1.3.1.1. oysters

1.3.1.2. clams

1.3.2. gastropods

1.3.2.1. snails

1.3.3. cephalopods

1.3.3.1. octopus

1.3.3.2. squid

2. ecdysozoans (molting)

2.1. roundworms

2.1.1. nematods

2.2. arthopods

2.2.1. chelicerates

2.2.1.1. scorpions

2.2.1.2. ticks

2.2.1.3. spiders

2.2.1.4. mites

2.2.1.5. horseshoe crabs

2.2.2. myriapods

2.2.2.1. centipedes

2.2.2.2. millipedes

2.2.3. crustaceans

2.2.3.1. isopods

2.2.3.2. decapods

2.2.3.2.1. shrimp

2.2.3.2.2. crab

2.2.3.2.3. lobsters

2.2.3.2.4. crawfish

2.2.3.3. barnacles

2.2.4. hexapods (insects, 6 legs, 3 body parts)

2.2.4.1. odonates

2.2.4.1.1. dragonflies

2.2.4.2. coleopterans

2.2.4.2.1. beetles

2.2.4.3. hymenopterans

2.2.4.3.1. bees

2.2.4.3.2. wasps

2.2.4.3.3. ants

2.2.4.4. dipterans

2.2.4.4.1. flies

2.2.4.4.2. mosquitoes

2.2.4.5. lepidopterans

2.2.4.5.1. butterflies

2.2.4.5.2. moths

2.2.4.6. orthopterans

2.2.4.6.1. grasshoppers

2.2.4.6.2. crickets

2.2.4.7. hemipterans

2.2.4.7.1. fleas

2.2.4.7.2. lice

2.2.4.7.3. termites

3. deuterosomes

3.1. echinoderms

3.1.1. sea stars

3.1.2. sea urchins

3.1.3. sand dollars

3.2. chordates

3.2.1. cephalochordates

3.2.1.1. tunicates

3.2.1.2. lancelets

3.2.2. vertebrates

3.2.2.1. fish

3.2.2.1.1. jawless

3.2.2.1.2. gnathostomes

3.2.2.1.3. chondrichthytes

3.2.2.1.4. osteichthyes

3.2.2.1.5. tetrapods

3.2.2.2. amphibians

3.2.2.2.1. frogs

3.2.2.2.2. salamanders

3.2.2.3. reptiles

3.2.2.3.1. snakes

3.2.2.3.2. lizards

3.2.2.3.3. turtles

3.2.2.3.4. alligators

3.2.2.4. mammals

3.2.2.4.1. produce milk

3.2.2.4.2. have hair

3.2.2.4.3. monotremes(lay eggs)

3.2.2.4.4. marsupial

3.2.2.4.5. placental