Ok, so a mammal is an animal that gives live birth, what's the classification for a non-mammal?

Question

Ok, I know a platypus is a mammal and lays eggs but that's not the question, what's the name of the classification of a non-mammal? Like, what is an animal called when it lays eggs? No, its not reptile or bird, I think theres a speciffic name for it, the reptuiles and birds are in it though, what's the name?? I just can't figure it out! XD

Answer 1

Amphibian?

Answer 2

The phase for non-mammal is non-mammal. Mammals are in the vertebra class, which is split into:

-Hyperoartia, which are jawless fish

-Conodonts, some extinct eel

-Pteraspidomorphi, other jawless fish

-Thelodonti - another type of fish

-Anaspida - small fish without scales

-Galeaspida, fish with an opening in there head

-Pituriaspida, armoured fish with long noses

-Osteostraci, armoured fish with paired fins

Placodermi - scaly fish with jaws

Chondrichthyes - fish with paired scales and scales

Acanthodii - Spiny Sharks

Sarcopterygii - lobe finned fishes, like coelacanths

Amphibians - Cold blooded animals that start out breathing water but turn into land-dwellers

Reptiles - Air beathing, cold blooded animals that have scales

Birds - Pretty self explanatory

Mammals

So as you can see, that group is split up quite a lot. Those are all terms you could use as alternative to mammal.

Answer 3

An animal that lays eggs is oviparous (as opposed to viviparous or ovoviviparous). Among vertebrates, most mammals are viviparous, birds are oviparous, repriles run the gamut, amphibians are oviparous, and the various fish groups are either oviparous or ovoviviparous.. I know of no group name for all of the non-mammalian vertebrates.

Answer 4

I think you might be looking for the word oviparous, which means reproducing by laying eggs, rather than viviparous, giving birth to live young, which is what the mammals, bar two, do - as do other species of non-mammals dotoo, though. Just as platypus and echidnas (think I've forgotten the spelling, there?)are exceptions, some snakes and fish give birth to live young rather than lay eggs.  

Answer 5

The animals your mentioned are clumped together as vertibrates.  AT the same level the vague classification is invertibrates.  At the level where mammels are distinguished, so are reptiles and  birds.