Class[es] (and Subclass) | Order |
Hyperoartia | |
Chondrichthyes (Holocephali) | |
Chondrichthyes (Elasmobranchii) | |
Chondrichthyes (Elasmobranchii) | |
Chondrichthyes (Elasmobranchii) | |
Chondrichthyes (Elasmobranchii) | |
Chondrichthyes (Elasmobranchii) | |
Chondrichthyes (Elasmobranchii) | |
Chondrichthyes (Elasmobranchii) | |
Chondrichthyes (Elasmobranchii) | |
Chondrichthyes (Elasmobranchii) | |
Chondrichthyes (Elasmobranchii) | |
Chondrichthyes (Elasmobranchii) | |
Chondrichthyes (Elasmobranchii) | |
Actinopterygii (Chondrostei) | |
Actinopterygii (Chondrostei) | |
Actinopterygii (Neopterygii) | |
Actinopterygii (Neopterygii) | |
Actinopterygii (Neopterygii) | |
Actinopterygii (Neopterygii) | |
Actinopterygii (Neopterygii) | |
Actinopterygii (Neopterygii) | |
Actinopterygii (Neopterygii) | |
Actinopterygii (Neopterygii) | |
Actinopterygii (Neopterygii) | |
Actinopterygii (Neopterygii) | |
Actinopterygii (Neopterygii) | |
Actinopterygii (Neopterygii) | |
Actinopterygii (Neopterygii) | |
Actinopterygii (Neopterygii) | |
Actinopterygii (Neopterygii) | |
Actinopterygii (Neopterygii) | |
Actinopterygii (Neopterygii) | |
Actinopterygii (Neopterygii) | |
Actinopterygii (Neopterygii) | |
Actinopterygii (Neopterygii) | |
Actinopterygii (Neopterygii) | |
Actinopterygii (Neopterygii) | |
Actinopterygii (Neopterygii) | |
Actinopterygii (Neopterygii) | |
Actinopterygii (Neopterygii) | |
Actinopterygii (Neopterygii) | |
Actinopterygii (Neopterygii) | |
Actinopterygii (Neopterygii) | |
Actinopterygii (Neopterygii) | |
Actinopterygii (Neopterygii) | |
Actinopterygii (Neopterygii) | |
Actinopterygii (Neopterygii) | |
Actinopterygii (Neopterygii) | |
Actinopterygii (Neopterygii) | |
Actinopterygii (Neopterygii) | |
Actinopterygii (Neopterygii) | |
Actinopterygii (Neopterygii) | |
Actinopterygii (Neopterygii) | |
Actinopterygii (Neopterygii) | |
Actinopterygii (Neopterygii) | |
Actinopterygii (Neopterygii) | |
Actinopterygii (Neopterygii) | |
Actinopterygii (Neopterygii) | |
Actinopterygii (Neopterygii) | |
Actinopterygii (Neopterygii) | |
[Sarcopterygii] Amphibia (Lissamphibia) | |
[Sarcopterygii] Amphibia (Lissamphibia) | |
[Sarcopterygii] Amphibia (Lissamphibia) | |
[Sarcopterygii] Reptilia (Diapsida) | |
[Sarcopterygii] Reptilia (Diapsida) | |
[Sarcopterygii; Reptilia (Diapsida)] Aves | |
[Sarcopterygii; Reptilia (Diapsida)] Aves | |
[Sarcopterygii; Reptilia (Diapsida)] Aves | |
[Sarcopterygii; Reptilia (Diapsida)] Aves | |
[Sarcopterygii; Reptilia (Diapsida)] Aves | |
[Sarcopterygii; Reptilia (Diapsida)] Aves | |
[Sarcopterygii; Reptilia (Diapsida)] Aves | |
[Sarcopterygii; Reptilia (Diapsida)] Aves | |
[Sarcopterygii; Reptilia (Diapsida)] Aves | |
[Sarcopterygii; Reptilia (Diapsida)] Aves | |
[Sarcopterygii; Reptilia (Diapsida)] Aves | |
[Sarcopterygii; Reptilia (Diapsida)] Aves | |
[Sarcopterygii; Reptilia (Diapsida)] Aves | |
[Sarcopterygii; Reptilia (Diapsida)] Aves | |
[Sarcopterygii; Reptilia (Diapsida)] Aves | |
[Sarcopterygii; Reptilia (Diapsida)] Aves | |
[Sarcopterygii; Reptilia (Diapsida)] Aves | |
[Sarcopterygii; Reptilia (Diapsida)] Aves | |
[Sarcopterygii; Reptilia (Diapsida)] Aves | |
[Sarcopterygii; Reptilia (Diapsida)] Aves | |
[Sarcopterygii; Reptilia (Diapsida)] Aves | |
[Sarcopterygii; Reptilia (Diapsida)] Aves | |
[Sarcopterygii; Reptilia (Diapsida)] Aves | |
[Sarcopterygii; Reptilia (Diapsida)] Aves | |
[Sarcopterygii; Reptilia (Diapsida)] Aves | |
[Sarcopterygii; Reptilia (Diapsida)] Aves | |
[Sarcopterygii; Reptilia (Diapsida)] Aves | |
[Sarcopterygii; Reptilia (Diapsida)] Aves | |
[Sarcopterygii; Reptilia (Diapsida)] Aves | |
[Sarcopterygii; Reptilia (Diapsida)] Aves | |
[Sarcopterygii; Reptilia (Diapsida)] Aves | |
[Sarcopterygii; Reptilia (Diapsida)] Aves | |
[Sarcopterygii; Reptilia (Diapsida)] Aves | |
[Sarcopterygii; Reptilia (Diapsida)] Aves | |
[Sarcopterygii; Reptilia (Diapsida)] Aves | |
[Sarcopterygii; Reptilia (Diapsida)] Aves | |
[Sarcopterygii; Reptilia (Diapsida)] Aves | |
[Sarcopterygii; Reptilia (Diapsida)] Aves | |
[Sarcopterygii; Reptilia (Diapsida)] Aves | |
Sarcopterygii; Reptilia (Diapsida) | |
[Sarcopterygii] Reptilia | |
[Sarcopterygii] Mammalia (Prototheria) | |
[Sarcopterygii] Mammalia (Theriiformes) | |
[Sarcopterygii] Mammalia (Theriiformes) | |
[Sarcopterygii] Mammalia (Theriiformes) | |
[Sarcopterygii] Mammalia (Theriiformes) | |
[Sarcopterygii] Mammalia (Theriiformes) | |
[Sarcopterygii] Mammalia (Theriiformes) | |
[Sarcopterygii] Mammalia (Theriiformes) | |
[Sarcopterygii] Mammalia (Theriiformes) | |
[Sarcopterygii] Mammalia (Theriiformes) | |
[Sarcopterygii] Mammalia (Theriiformes) | |
[Sarcopterygii] Mammalia (Theriiformes) | |
[Sarcopterygii] Mammalia (Theriiformes) | |
[Sarcopterygii] Mammalia (Theriiformes) | |
[Sarcopterygii] Mammalia (Theriiformes) | |
[Sarcopterygii] Mammalia (Theriiformes) | |
[Sarcopterygii] Mammalia (Theriiformes) | |
[Sarcopterygii] Mammalia (Theriiformes) | |
[Sarcopterygii] Mammalia (Theriiformes) | |
[Sarcopterygii] Mammalia (Theriiformes) | |
[Sarcopterygii] Mammalia (Theriiformes) | |
[Sarcopterygii] Mammalia (Theriiformes) | |
[Sarcopterygii] Mammalia (Theriiformes) | |
[Sarcopterygii] Mammalia (Theriiformes) | |
[Sarcopterygii] Mammalia (Theriiformes) | |
[Sarcopterygii] Mammalia (Theriiformes) | |
[Sarcopterygii] Mammalia (Theriiformes) | |
[Sarcopterygii] Mammalia (Theriiformes) | |
[Sarcopterygii] Mammalia (Theriiformes) | |
Sarcopterygii (Dipnoi) | |
Sarcopterygii (Dipnoi) | |
Sarcopterygii (Actinistia) | |
They ARE vertebrates by relation, but whether they actually have spines is unclear. | |
Extinct/alternate classification of Petromyzontiformes. | |
Another extinct class related to lampreys. Not to be confused with the Anapsida, of which only the Testudines are around today. | |
A class, not order. Also extinct. | |
374 million years out of date. Also a class, not an order | |
Extinct. Chondroichthyes (Holocephali) | |
Extinct. Chondroichthyes (Holocephali) | |
Extinct. Chondroichtyes (Holocephali) | |
Extinct (Elasmobranchii) | |
Extinct (Elasmobranchii) | |
Extinct (Elasmobranchii) | |
Extinct (Elasmobranchii) | |
Extinct (Elasmobranchii) | |
Extinct (Elasmobranchii) | |
Extinct (Elasmobranchii) | |
Extinct (Actinopterygii) | |
Extinct (Actinopterygii) | |
Extinct (Actinopterygii) | |
Extinct (Actinopterygii) | |
Extinct (Actinopterygii) | |
Extinct (Actinopterygii) | |
Extinct (Actinopterygii) | |
Extinct (Actinopterygii) | |
Extinct (Actinopterygii) | |
Extinct (Actinopterygii) | |
Extinct (Actinopterygii) | |
Extinct Sarcopterygii; Amphibia (Lissamphibia) | |
Extinct Sarcopterygii; Amphibia (Lepospondylii) | |
Extinct Sarcopterygii; Amphibia (Lepospondylii) | |
Extinct Sarcopterygii; Amphibia (Lepospondylii) | |
Extinct Sarcopterygii; Amphibia (Lepospondylii) | |
Extinct Sarcopterygii; Amphibia (Lepospondylii) | |
Extinct Sarcopterygii; Amphibia (Labyrinthodontia) | |
Not really extinct, as all modern amphibians are descended, but if retained would have to be ranked above order. Sarcopterygii; Amphibia (Labyrinthodontia) | |
Non-extinct Sarcopterygii; Amphibia (Labyrinthodontia), but the amniotes all have their own orders, too, so we're treating it as extinct/redundant for the purposes of this quiz | |
Extinct Sarcopterygii (Tetrapodomorpha) | |
Extinct Sarcopterygii (Tetrapodomorpha) | |
Sort-of Extinct Sarcopterygii (Tetrapodomorpha). Tetrapoda - the superclass in which the four traditional classes of land vertebrate are grouped, is nested within... Oops. | |
Extinct Sarcopterygii | |
Extinct Sarcopterygii | |
Arguably not Extinct Amphibia (Labyrinthodontia) - as paraphyletic without the amniotes - and possibly the Lissamphibia as well - it's a bit iffy calling this extinct, but you know | |
Not entirely Extinct Sarcopterygii; Reptilia (Parareptilia), as the order Testudines seems to be descended from this group | |
Extinct Sarcopterygii; Reptilia (Parareptilia) | |
Extinct Sarcopterygii; Reptilia (Parareptilia) | |
Partially extant Sarcopterygii; Synapsida - ancestors of modern mammalian groups | |
Primitive and extinct mammals of unclear affinites. Sarcopterygii; Mammalia | |
Extinct Sarcopterygii; Mammalia | |
Extinct Sarcopterygii; Mammalia | |
Extinct Sarcopterygii; Mammalia | |
Extinct Sarcopterygii; Mammalia | |
Possibly an over-studied (and almost certainly an extinct) Diprotodontian. | |
Extinct Sarcopterygii; Mammalia | |
Extinct Sarcopterygii; Mammalia | |
Extinct Sarcopterygii; Mammalia - and a relative of mice and men | |
Extinct Sarcopterygii; Mammalia | |
Extinct Sarcopterygii; Mammalia | |
Extinct Sarcopterygii; Mammalia | |
Extinct Sarcopterygii; Mammalia | |
Extinct Sarcopterygii; Mammalia | |
Extinct Sarcopterygii; Mammalia | |
Extinct Sarcopterygii; Reptilia (Diapsida) | |
Extinct Sarcopterygii; Reptilia (Diapsida) | |
Extinct Sarcopterygii; Reptilia (Diapsida) | |
Extinct Sarcopterygii; Reptilia (Diapsida) | |
Extinct Sarcopterygii; Reptilia (Diapsida) | |
Extinct Sarcopterygii; Reptilia (Diapsida) | |
Extinct Sarcopterygii; Reptilia (Diapsida) | |
Extinct Sarcopterygii; Reptilia (Diapsida) | |
Extinct Sarcopterygii; Reptilia (Diapsida) | |
Extinct Sarcopterygii; Reptilia (Diapsida) | |
Extinct Sarcopterygii; Reptilia (Diapsida) | |
Extinct Sarcopterygii; Reptilia (Diapsida) | |
Extinct Sarcopterygii; Reptilia (Diapsida) | |
Extinct Sarcopterygii; Reptilia (Diapsida) | |
Extinct Sarcopterygii; Reptilia (Diapsida) | |
Extinct Sarcopterygii; Reptilia (Diapsida) | |
Extinct Sarcopterygii; Reptilia (Diapsida) | |
Extinct Sarcopterygii; Reptilia (Diapsida) | |
Extinct Sarcopterygii; Reptilia (Diapsida) | |
Extinct Sarcopterygii; Reptilia (Diapsida) | |
Extinct Sarcopterygii; Reptilia (Diapsida) | |
Extinct Sarcopterygii; Reptilia (Diapsida) | |
Extinct Sarcopterygii; Reptilia (Diapsida) | |
Extinct Sarcopterygii; Reptilia (Diapsida) | |
Extinct Sarcopterygii; Reptilia (Diapsida) | |
The only Dinosaur order that actually DID go extinct 65 million years ago. Sorry. | |
Referring to those members that aren't currently part of the largest terrestrial vertebrate class, of course... | |
Possibly not a valid order, but extinct, at any rate... | |
Primitive and Extinct Birds | |
Primitive and Extinct Birds | |
Primitive and Extinct Birds | |
Primitive and Extinct Birds | |
Primitive and Extinct Birds | |
Primitive and Extinct Birds | |
Primitive and Extinct Birds | |
Extinct Paleognaths | |
Extinct Paleognaths | |
Extinct Paleognaths | |
Extinct Paleognaths | |
Extinct Paleognaths | |
Yes, we all wish this was true. | |
Now, Really? | |
Where to start. Do potatoes have spines? Really, though? | |
They don't exist. If they did, they'd probably be Perissodactyls | |
Good question. The two extant species of hippopotamus - both endemic to Africa - render the Artiodactyla invalid - the hippopotamuses being closely related to the Cetacea (whales) | |
Rimmer patently lacks a spine, so the question remains - what is he? Our best guess is that he is either a) A slime mold or b) A highly derived vertebrate which has secondarily los | |
Although genetically close to primates, Erbs were reclassified as non-living in 2004, to put as much distance between them and the animal kingdom. It's better this way. Bio Unhelp. | |
Despite numerous distinctly vertebrate-like features, this is actually a slime mold. Bio Unhelp | |
That would be earwigs | |
Now you're just being silly. | |
How rude! | |
Or did you mean the biscuit? | |
The feathered snake god would probably be under SQUAMATES, if he was real. | |
You don't get points just because I like you, you know. Oh, go on then, type in 'Saurischia' | |
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