Phylums nd stuff

Porifera

Sponges; asymmetrical; no true tissues; choanocytes; spicules or spongin skeleton; examples: Spongilla, bath sponge

Cnidaria

Radial symmetry; diploblastic; gastrovascular cavity; cnidocytes with nematocysts; examples: Hydra, jellyfish, sea anemones, corals

Platyhelminthes

Flatworms; bilateral; acoelomate; incomplete gut; many parasitic; examples: planaria, tapeworms, flukes(^)
Nematoda

Annelida

Segmented worms; true coelom; closed circulatory system; setae; examples: earthworms, leeches, polychaetes

Mollusca

Soft-bodied; mantle, foot, visceral mass; often shell; radula except bivalves; examples: snails, clams, octopus, squid

Arthropoda

Segmented body; jointed appendages; chitin exoskeleton; open circulatory system; examples: insects, spiders, crabs

Echinodermata

Marine; pentaradial adults; bilateral larvae; water vascular system; examples: sea stars, sea urchins, sand dollars

Chordata

Notochord; dorsal hollow nerve cord; pharyngeal slits; post-anal tail; examples: fish, amphibians, reptiles, birds, mammals

Vertebrata

Chordates with vertebral column and cranium; complex organs; examples: sharks, frogs, birds, humans

Chondrichthyes

Cartilaginous fishes; placoid scales; no swim bladder; internal fertilization common; examples: sharks, rays

Actinopterygii

Ray-finned bony fishes; operculum; swim bladder; most fish species; examples: salmon, tuna, goldfish

Sarcopterygii

Lobe-finned fishes; muscular fins; ancestor of tetrapods; examples: coelacanth, lungfish

Amphibia

Moist skin; metamorphosis; eggs lack shells; ectothermic; examples: frogs, toads, salamanders

Anura

Tailless adults; long hind limbs; jumping locomotion; external fertilization common; examples: frogs, toads

Caudata

Tailed adults; regeneration ability; often internal fertilization; examples: salamanders, newts

Reptilia

Amniotic egg; keratinized skin; lungs only; ectothermic; examples: snakes, lizards, turtles

Squamata

Movable quadrate bone; scales; snakes lack limbs; examples: lizards, snakes

Testudines

Shell with carapace and plastron; ribs fused to shell; examples: turtles, tortoises

Crocodilia

Four-chambered heart; parental care; semi-aquatic predators; examples: alligators, crocodiles

Aves

Feathers; hollow bones; endothermic; four-chambered heart; examples: birds

Passeriformes

Perching birds; anisodactyl feet; songbirds; examples: sparrows, robins, finches

Falconiformes

Birds of prey; hooked beak; talons; carnivorous; examples: hawks, falcons, eagles

Mammalia

Hair; mammary glands; three middle ear bones; endothermic; examples: humans, dogs, whales

Monotremata

Egg- laying mammals; lack nipples; examples: platypus, echidna

Marsupialia

Pouched mammals; short gestation; examples: kangaroos, opossums

Primates

Opposable thumbs; forward-facing eyes; large brains; examples: monkeys, apes, humans

Carnivora

Carnassial teeth; meat-adapted jaws; examples: lions, wolves, bears

Artiodactyla

Even-toed ungulates; many ruminants; examples: deer, cows, pigs

Cetacea

Fully aquatic mammals; blowhole; echolocation; examples: whales, dolphins

Chiroptera

True flight; elongated fingers; echolocation common; examples: bats

Rodentia

Continuously growing incisors; gnawing; examples: mice, rats, squirrels

Insecta

Three body segments; six legs; tracheal respiration; examples: insects

Coleoptera

Hardened forewings (elytra); complete metamorphosis; examples: beetles, ladybugs

Diptera

One pair of wings; halteres; complete metamorphosis; examples: flies, mosquitoes

Lepidoptera

Scaled wings; caterpillar larvae; complete metamorphosis; examples: butterflies, moths

Hymenoptera

Haplodiploidy; social behavior common; examples: ants, bees, wasps

Orthoptera

Jumping hind legs; incomplete metamorphosis; examples: grasshoppers, crickets