[a / b / c / d / e / f / g / gif / h / hr / k / m / o / p / r / s / t / u / v / vg / vm / vmg / vr / vrpg / vst / w / wg] [i / ic] [r9k / s4s / vip] [cm / hm / lgbt / y] [3 / aco / adv / an / bant / biz / cgl / ck / co / diy / fa / fit / gd / hc / his / int / jp / lit / mlp / mu / n / news / out / po / pol / pw / qst / sci / soc / sp / tg / toy / trv / tv / vp / vt / wsg / wsr / x / xs] [Settings] [Search] [Mobile] [Home]
Board
Settings Mobile Home
/an/ - Animals & Nature

Name
Options
Comment
Verification
4chan Pass users can bypass this verification. [Learn More] [Login]
File
  • Please read the Rules and FAQ before posting.

08/21/20New boards added: /vrpg/, /vmg/, /vst/ and /vm/
05/04/17New trial board added: /bant/ - International/Random
10/04/16New board for 4chan Pass users: /vip/ - Very Important Posts
[Hide] [Show All]


Janitor application acceptance emails are being sent out. Please remember to check your spam box!


[Advertise on 4chan]


>probably the most successful family of land vertebrates ever
>no living descendants
Why?
>>
>>5066884
>Why?

Are we not related to this creature? Isn't it a synapsid?
>>
File: exaeretodon (1).png (1.16 MB, 1200x587)
1.16 MB
1.16 MB PNG
>>5066903
>Are we not related to this creature? Isn't it a synapsid?
Related yes, but we and all mammals for that matter, don't descend from them, Lystros are dicynodonts, and we descend from cynodonts.
>>
File: pachydectes-1024x569[1].png (914 KB, 1024x569)
914 KB
914 KB PNG
>>5067007

Cute dog.
Really starting to get endeared to these weird, lumpy, prehistoric, psuedo-mammals.
>>
File: 1605150209162.jpg (364 KB, 1477x1881)
364 KB
364 KB JPG
>>
>>5067007
>we descend from cynodonts.
how are you/they so sure about it?
is there any genetic evident?
>>
>>5066884
They couldn't run from the dinosaurs because our own ancestors blocked off the underground.
>>
>>5066884
Too much breathing and burrowing
>>
>>5066884
Inbreeding after selecting for eusociality without having wings
>>
>>5066884
>the most successful family of land vertebrates ever
>no living descendants
Evidently not, kek.
>>
>>5067598
Why did they do that?
>>
>>5067582
we *most likely, based on all of our data* descend from cynodonts.
>>
File: 1616403440240.png (982 KB, 776x1106)
982 KB
982 KB PNG
>>5067937
Pure evil.
>>
>>5066884
The mistake that lead to all other mistakes.
>>
>>5067978
What the hell is that one in great tier called? I think I would have remembered seeing that one.
>>
>>5066903
Synapsids are a clade, not a taxon. Which means there are synapsid vertebrates out there that have no connection between each others other than having a spine
>>
>>5068559
Actual retard
>>5068563
Aren't Diapsids and Anapsids now rolled into Sauropsods?
>>
>>5066884
Paleozoic fans.
>>
File: FB_IMG_1762689186071.jpg (67 KB, 900x900)
67 KB
67 KB JPG
>>5068734
Nah, turtles and scutosaurus are anapsids btw.
>>
>>5067978
That's our ancestor.
>>
>>5070690
Scutosaurs are parareptiles and turtles are very distant from them
>>
File: Meiolania_fr_totally.jpg (209 KB, 1080x1038)
209 KB
209 KB JPG
>>5072096
shut it nerd
>>
>>5072098
That is very clearly not Meiolania
>>
>>5066884
They were successful after the great dying. When niches were refilled they were outcompeted by archosauriforms.
>>
>>5074606
Yeah, I would imagine that though they bounced back, the archosaurs ended up evolving and outcompeting them into extinction.
>>
>>5074607
Rhynchosaurs' radiation in the Ladinian was the nail on the coffin IMO. Kannemeyeriiformes managed to keep going by reaching pachyderm sizes to avoid direct competition with rhynchosaurs and predation by large suchians but such trophic level increase and overspecialisation made them vulnerable to the the T-J extinction (which ironically also killed off both rhynchosaurs and large suchians, lol)
>>
>>5066884
because the Permian mass extinction was excessively brutal,idiot
>>
>>5074619
They survived the End Permian Mass Extinction. They died out in the late Triassic faunal turnover.



[Advertise on 4chan]

Delete Post: [File Only] Style:
[Disable Mobile View / Use Desktop Site]

[Enable Mobile View / Use Mobile Site]

All trademarks and copyrights on this page are owned by their respective parties. Images uploaded are the responsibility of the Poster. Comments are owned by the Poster.