Hey all, hope this is the right sub but I can't find much info about species that were undiscovered until they were believed to be extinct? Some Google searches call this Centinelan Execution but I'm not sure that's the right term.

So, arthropleura was most likely an herbivore, yes? Was there a giant carnivorous species?

The skeleton of Scolosaurus, which Google often lists as the skeleton of an \"Ankylosaurus\".

I would say with confidence that Ankylosaurus is the most overrated dinosaur and prehistoric creature in general. It is known from very fragmentary remains, and all its depictions in popular culture are based on other, better-studied ankylosaurids like Scolosaurus. Even if you go to Google Images and type in "Ankylosaurus fossils" instead of Ankylosaurus magniventris fossils you will see skeletons of other armored dinosaurs. I have no idea why Ankylosaurus is so popular when we have much better-studied Scolosaurus, Edmontonia, Gastonia or Pinacosaurus.

I was wondering if there is any evidence if a human species in the America's before the Bering Strait Land bridge? I tried looking this up but couldn't find an article talking about that exactly.

Added a very light wash of colour. More at www.instagram.com/dailydinosketch

For context, I've decided to make a list of fauna species (preferably megafauna) for my original story omniverse called The Big Five Thousand loosely inspired by The Big Five, which is an accepted list of African fauna species who are considered risky and dangerous to trophy hunt. I myself don't condone this at all, but for the sake of quantifying the average physical strength and resilience, and also imagining how dangerous and risky hunters would consider killing these species, I've decided to extend the list taking to account the countless extinct animal species there are.

If you have any suggestions, list an animal species you think are plausibly, or want to see depicted as, dangerous. They can be predatory, territorial, and intelligent (animals are sentient, sensitive, and intelligent in their own right, more than we credit them for). If you would like to see an interesting dinosaur or other prehistoric animal species on this list, do mention how you think they would behave including their general temperament, cognative abilities, social structures, and semblance of primitive vocal calls and language, as well as levels of perception and self awareness (how they make sense of and interact with their surroundings), and how greatly they value their own self preservation and other members of their species. All of these personality and behavioral aspects play into their intelligence. In addition, you can take inspiration from real world studies or make speculative, plausible, and hypothetical guesses for how they would use their anatomy in a combat situation whether it be their natural strength and size, agility and speed, or hide/armor. If I end up writing or adapting your ideas I will credit you for them. Making up a hypothetical, analytical list of five thousand dangerous animals is easier and fun as a collaborative thought experiment.

Proud to announce that my short story collection, Prehistoric Wild: Life in the Mesozoic, has been update with its 38th entry. Called "The Mammalian Imposters," this one takes place in the Burgersdorp Formation of Middle Triassic South Africa, 246 million years ago. In it, a male Bauria successfully hunts a Euparkeria only to face a few obstacles on his way back home, including wrestling with others of his kind and avoiding the jaws of a hungry Erythrosuchus. This one is probably one of the oldest ideas I've had for Prehistoric Wild as a whole, thus I've had it in my mind for a while. Originally, the protagonist was going to be a Cynognathus, something that seemed like it'd be fitting for a fossil formation that's also known as the Cynognathus Assemblage Zone. But after learning how big that species has been known to get, I figured it'd be better to save it for a different story idea I'll write later on down the line. I was also further inspired to implement meerkat-like behavior after watching a nature documentary episode centering around them. Can't wait to hear what ya'll end up thinking of it. https://www.wattpad.com/1510703948-prehistoric-wild-life-in-the-mesozoic-the

I'm like half way through the chapter and all this chapter is about. Is the act of killing and bashing of tortoises.

Debating whether or not to add colour. You can see more of my work on Instagram www.instagram.com/dailydinosketch

IIRC, most of the temperate rainforest zones were in the path of the wave of human migration that wiped out a lot of the megafauna in Europe and North America.

Are there any large extinct animals that we know would have inhabited the temperate rainforest ecosystems? Or are the temperate rainforest ecosystems we see today essentially the same as existed before humans arrived?

Title says it all, sorry if this type of thing isn’t allowed but I’m just curious and it’s kinda hard to find stuff about it on the internet

Proud to announce that my short story collection, Prehistoric Wild: Life in the Mesozoic, has been updated with its 37th entry, AKA the first Prehistoric Wild story of 2025. Called "The Shallow Sanctuary" this one takes place in the Charmouth Mudstone Formation of Early Jurassic England, 190 million years ago. This one showcases the many ways that the shallows benefit those that reside in it, including Scelidosaurus, Dimorphodon, Turnersuchus, Ichthyosaurus, and Attenborosaurus. This is a story idea I've had in mind for a very long while. I originally conceived it through a combination of coming across this specific fossil site, and one day realizing that dinosaurs never have been depicted eating seaweed. Of course, there wasn't true seaweed back then, but there were algal plants, so close enough. And you bet that the main Attenborosaurus's name will be David after the absolute GOAT the species was named after. Can't wait to hear what y'all end up thinking of it. https://www.wattpad.com/1508809724-prehistoric-wild-life-in-the-mesozoic-the-shallow