vertebrates bio lab exam

Myxini (hagfishes)

Chordate vertebrate

Cartilage no bones

Mostly ocean

No jaws or larval stage

Petromyzontida (lamprey)

Chordates vertebrates

Cartilage no bones

Fresh and salt water

No jaws

Rudimentary vertebrate surrounding notochord

Chondrichthyes (cartilage fish)

Skeleton of cartilage

Vertebrate, chordate, gnathostomes

Jaws paired fins mainly marine

Sharks and rays

Actinopterygii (ray finned fishes)

Chordate, vertebrate, gnathostomes, osteichthyans

Bony fishes

Lung like structures

Actinistia (coelocanths) and dipnoi (lungfishes)

Chordate, vertebrate, gnathostomes, osteichthyans, lobe fins

Lobed fins

Have lungs and gills

Amphibia

Chordate, vertebrate, gnathostomes, osteichthyans, lobe fins, tetrapods

Limbs with digits

Frogs toads newts salamanders

Shell less aquatic egg

Moist skin

Reptilia (not birds)

Chordate, vertebrate, gnathostomes, osteichthyans, lobe fins, tetrapods, aminotes (birds)

Turtles lizards snakes

Amniotic egg

Lungs

Skeleton

Mammals

Chordate, vertebrate, gnathostomes, osteichthyans, lobe fins, tetrapods, amniotes, mammals

Hair milk producing

Special teeth