Vertebrate Zoology Exam One

vocab

Agnatha

jawless fish

Cephalaspidomorphi

lampreys

Chondrichthyes

cartilagenous fish

Elasmobranchii

sharks, skates, rays

Holocephali

chimeras (ratfish)

Gnathostomata

Developed jaws. Encompasses all living bony fishes and cartilaginous fishes, as well as extinct prehistoric fish such as placoderms and acanthodians

Placoderm

Extinct. Head and thorax had armored plates

Chondrostei

Paddlefish, sturgeon, bichir

Holostei

gars, bowfin

Teleostei

modern bony fishes

Craniata

posses a skull

Lissamphibia

all modern amphibians, including frogs, salamanders, and caecilians

Myxini

hagfish

Ostracodermi

extinct armored jawless fish

Rhipidistians

lobe-finned bony fishes (tetrapods and lungfishes)

Sarcopterygii

lungfish

Tetrapoda

four limbed, descended from sarcopterygii

Apoda

caecilians

Caudata

salamanders

Anura

frogs and toads

Archaeopteryx

fake transition species between reptiles and birds

Dinosauria

dominant species group including herbivorous sauropods and carnivorous theropods

Ichtyosauria

extinct group of dolphin like reptiles

Pterosauria

extinct group of reptiles capable of flight, bat-like

Archosauria

diapsid group that includes all living crocodiles and birds

Pleurodira

side neck turtles

Cryptodira

suborder for hidden neck turtles

Testudines

all living turtles

Synapsid

one temporal skull opening, lineage for todays mammals

Order Monotremata: Subclass Prototheria

egg laying mammals; echidna and platypus

Subclass Theria

placental/live mammals

Infraclass Metatheria

marsupials

Infraclass Eutheria

every other mammal