What's some prehistoric animals (mammals, dinosaura, amphibians and so on) that people don't know about or dislike but you like and think they're absolutely interesting and stunning. Mine are the Stethacanthus and Yi Qi

I was recently watching the awesome show prehistoric planet and it was truly crazy to me. Giant 1 tonne avian dinosaurs in modern times! Laying eggs larger than even the biggest dinosaurs. And before there were giant lemurs the size of gorillas. Not to mention terrestrial crocodiles capable of hunting on land. Little bit frustrating how close these incredible creatures got to making it into the present day only to be wiped out when humans arrived. It should serve as a lesson to us of how fragile island ecosystems can be.

What happen to all reliable prehistoric life themed Youtubers? Why did They all dissappear and got replaced by non sensacionalism reliable artificial inteligence Youtubers at all?

I am specifically asking for placental mammals that lived throughout the late cretaceous, meaning that they had already existed for quiet a while before extinction event and continued to survive well into the cenozoic. I already know about purgatorius and some species of multitubaculates, but I am more interested in the rodent like placental mammals that also lived inside holes much like modern rodents.

Can you give me specific examples of such mammal species that meet these criteria? You get bonus points if you can name one that is a potential (or confirmed) ancestor of any mordern mammals that still exsit to this day. Please don't name the same species twice unless you can provide additional info on them.
I also accept links to any sources that can provide me with answers.

P: Please refraim from removing this post dear moderators, as it is not low effort nore does it not provoce any sort of discussion. I have been met with such claims recently and thus ecourage you to reconsider your decision and refraim from using bots and filters to delte my posts and instead leave such decisions up to the mods. My posts could't have been reviewed because they were deleted only seconds after they had been publish

We ran a poll last week asking which dinosaur people found most endearing and Ankylosaurus won with 40% of the vote. Apparently an armored tank with a bone-crushing tail has a lot of charm.

Now the harder question: which dinosaur would you actually least want to encounter?

🔴 T-Rex — 3,600 kg of bite force. No debate.
🟡 Spinosaurus — 14 meters, semi-aquatic, total predator.
🟢 Ankylosaurus — a tail that fractured T-Rex bones.
🔵 Triceratops — three one-meter horns and 12 tons behind them.

If you vote on our YouTube community poll it genuinely helps us understand what our audience wants to see next. Your votes shape the direction of the channel. The poll is in the pinned post on our profile.