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Lissamphibia
A clade of amphibians characterized by features such as pedicellate teeth and two types of sensory papillae in the inner ear.
Gymnophiona
A group of limbless amphibians with cylindrical, segmented bodies, often fossorial or aquatic.
Caudata (Urodela)
Amphibians with long tails, broad heads, and a body structure that includes both terrestrial and aquatic species.
Anura
A group of amphibians fully adapted for jumping, characterized by a short body and well-developed limbs.
Amniotic egg
An egg that contains membranes to protect and nourish the embryo, facilitating development on land.
Paedomorphosis
A developmental process in which adults retain larval traits.
Monotremata
Egg-laying mammals with a unique reproductive system and semi-erect posture.
Marsupalia
Mammals characterized by a maternal pouch for nurturing underdeveloped young.
Theria
A subclass of mammals that give birth to live young and possess a complex connection between mother and fetus.
Morganucodon
One of the earliest mammals, small in size with an enlarged brain and advanced skull features.
Sphenodontia
Lizard-like reptiles that possess unmodified diapsid skulls and a unique arrangement of teeth.
Cheloniidae
Family of marine turtles with streamlined bodies and limited neck retraction.
Pipidae
Family of highly aquatic frogs with dorsoventrally flattened bodies and well-developed webbed feet.
Amphiumidae
A family of eel-like salamanders that retain certain larval characteristics into adulthood.
Cryptobranchidae
A family of large aquatic salamanders with thin skin folds and small eyes.
Ranidae
Commonly known as true frogs, these amphibians have pointed heads and well-developed hind limbs.
Alligatoridae
A family of freshwater crocodilians characterized by their mandibular teeth fitting inside their upper jaw.
Crocodylidae
A family of crocodilians found worldwide, with variable snout shapes and salt glands for osmotic regulation.
Gavialidae
A family of crocodilians that includes the gharial, which has a long, narrow snout adapted for fish eating.
Helodermatidae
A family of lizards known for having venom glands located in their lower jaws.
Chameleonidae
A family of reptiles known for their ability to change colors and projectile tongues for hunting.
Neognathae
A clade of birds that includes modern species with a variety of adaptations for flight.
Thrinaxodon
A primitive cynodont characterized by skeletal features that suggest advanced locomotion.
Notoryctemorphia
A group of marsupials adapted to digging with vestigial eyes and short stout tails.
Diprotodontia
An order of marsupials including kangaroos, koalas, and wombats, known for their unique teeth and herbivorous diets.
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