The Permian Survivors

The two main lineages of land vertebrates to survive the Permian mass extinction 250 million years ago were the early mammals and the ancestors to the dinosaurs. This clip is from the Nova series on evolution.

Category:

Science & Technology

Tags:

• permian
• mass
• extinction
• dinosaurs
• nature
• evolution
• paleontology

[IDisnotscience]

What is the name of this video? Is that Liam Neeson's voice?

[Cyraside]

This is a clip from "Extinction!" a series on evolution by Nova.

[Shepherd1OFH]

@wikiporno Therapsids are NOT more closely related to archosaurs then to lepidosaurs (modern reptiles). both archosaurs and lepidosaurs are in the the sauropsidae lineage, more specificaalt, the diapsidae lineage. Therapsids are in the synapsidae lineage.

[lukebccb]

The bible doesn't mention anything about mammals so therefore mammals don't exist.

[MakeSensePlz]

does anyone else see mel gibson in that guys face? :D

[garioldwin]

Is that Liam Neeson ?

[jmerrife]

@handsomestik Supa Puffs!

[Phoboskomboa]

@wikiporno What I think is more interesting is the fact that they are calling the primitive mammals mammals, even though they have no idea exactly when the mammary glands evolved. This practice of naming them on assumptions about what their descendants would become is exactly the kind of thing that Richard Dawkins harps about calling it the conceit of hindsight.

These weren't little proto-mammals biding their time until they had the chance to become the be-all end-all of evolution, namely us.

[wikiporno]

They left out that the "dinosaurs" where part of a larger group called "archosaurs" that also included crocadillians, pterosaurs, and birds (through the dinosaurs) as well as other groups that died out at the triassic/jurassic barier, and that the "mammal like reptiles" (or therapsids as they're called) and the archosaurs where more closly related to each other than other "reptiles". From this point of veiw, a croc isn't even a reptile at all!

[handsomestik]

dem eyebrows

[Mitche23]

What is the name of the show?

[ble86n]

Thanks for these vids!