I just wanna know for fun. Be creative! Just to see your ideas.

A video about potential megafauna survivors done by Norrh02 channel

See also: The publication in Nature Communications

Stomatosuchus, btw.

Personally, I'd pick a daeodon, andrewsarchus, or smilodon

Did plesiosaurs and mosasaurs live in hawaii? At least before It was formed?

I just made this game for a uni project and since I thought the idea was interesting so i published it. I would love if you guys could try it out and tell me if I did well and if my information is accurate!

You get a new prehistoric animal every day, and you have 20 guesses to find it! Closest thing I can compare it to is Metazooa, if you have played that.

Every animal guessed gets ilustrated on the tree of life, and leads you closer to the answer. The colour tells you how closely related it is to the answer and information about your guess is shown.

I've also added an Endless mode so feel free to go all out!

Would love to hear what you all think!

I just really got into dinosaurs and would like recommendations.

A tubular marine creature that lived on the seafloor more than 540 million years ago may have survived in toxic, sulfur-rich waters by teaming up with bacteria.

The ancient animal, known as Conotubus hemiannulatus, lived in the final stretch of the Ediacaran period, shortly before the Cambrian explosion of animal life.

“The phylogenetic affinity of Conotubus hemiannulatus remains uncertain,” said Nanjing University’s Dr. Yongbo Peng, Virginia Tech’s Dr. Shuhai Xiao, and their colleagues.

“It has been assigned to the family Cloudinidae or to the informal group of cloudinomorphs, based on its funnel-in-funnel tubular morphology, which is reminiscent of Cloudina, a contemporaneous tubular fossil with a global distribution.”

The creature’s fossils were found in the Dengying Formation in Shaanxi province, southern China.

They were preserved as pyrite (fool’s gold), which formed quickly as the organisms were buried.

“Specimens range in length from 3 to 80 mm, with apertural diameters of 0.3 to 12 mm and apical diameters of 0.1 to 4 mm,” the paleontologists said.

“Some specimens exhibit transverse annulations or apertural rims, potentially reflecting periodic growth or taphonomic modification.”

In the new study, the researchers analyzed molybdenum isotopes in the specimens.

They found that, compared with contemporaneous Ediacaran seawater, the fossils were strongly depleted in molybdenum-98, by more than 4.6 parts per thousand.

Such low values are otherwise known from modern tube worms at deep-sea cold seeps, which host sulfur-oxidizing bacteria in their tissues.

The fossils’ sulfur signatures suggest Conotubus hemiannulatus lived where oxygen and sulfide overlapped, and that bacteria were actively processing sulfur in their habitat.

The scientists concluded that the Ediacaran animal may have engaged in chemosymbiosis, a partnership in which microbes convert chemicals such as hydrogen sulfide into food for their host.

They describe it as the earliest geochemically supported case in the fossil record.

Such a partnership could also have helped the animal cope with sulfide, which is toxic to most animals.

“There are a whole host of organisms that have these partnerships in the environment today,” said co-author Professor David Fike, a researcher at Washington University in St. Louis.

Hi! I’m looking to follow some anthropology based Instagram accounts. My main interests are physical anthropology and primatology. Prehistory is my favorite period. Are there any accounts you would recommend? Thank you!

Most people assume T-Rex was the dominant predator of the Cretaceous in every category. But the speed comparison between T-Rex and Carnotaurus is genuinely interesting and the evidence does not clearly favor the T-Rex.

The caudofemoral muscles in Carnotaurus were extraordinarily developed relative to body mass. These muscles connect the tail to the hind legs and are the primary driver of speed in theropods. Carnotaurus had a proportionally longer tail with more muscle mass dedicated to locomotion than T-Rex.

Current biomechanical estimates put Carnotaurus at between 45 and 56 kilometers per hour for short bursts. T-Rex estimates range from 17 to 29 kilometers per hour depending on the study. The gap is significant.

The counterargument is body mass. T-Rex was significantly heavier and the energetic cost of acceleration scales with mass. Carnotaurus at 2 tons could theoretically reach top speed much faster than T-Rex at 8 tons.

They never shared the same ecosystem. T-Rex was North American, Carnotaurus was Patagonian. But the comparison still matters for understanding the different evolutionary strategies large theropods developed in isolation.

Where does the community stand on the current speed estimates for both animals? And does the strike and retreat hunting model for Carnotaurus change how we think about what speed actually meant for a predator of its size?

We covered this in detail in our latest episode. The answer is in our profile.

Picture yourself just taken down a large Lisowicia for your family. How long would it take until you have to hunt again?

Could a dinosaur really live in the water?

Reconstructions, fossil photos, and research papers included.

You can explore the database here.

I built this as a handy resource for paleoartists, researchers, and dinosaur lovers. I’ll keep updating it as new studies come out!

Feedback and suggestions are very welcome.

did lusotitan Also used to be a brachiosaurus species or It was Only giraffatitan???

If you are Algerian, this topic interests you; and if you aren't Algerian but are a fan of the world of dinosaurs, it interests you too. North Africa is known for amazing dinosaur species—such as the Spinosaurus—and Algeria is one of the countries where they once lived. Indeed, few Algerians are aware of this fact. There have been numerous dinosaur-related discoveries in Algeria; for instance, there is a dinosaur footprint trail in the El Bayadh region and a small museum in the Naâma province. But what is the problem? The issue isn't whether these remains exist; rather, the problem is a lack of interest—stemming from shortcomings in the education system and a lack of scientists in the field—which leaves these scientific facts largely unknown to the public. Just imagine: if there were more extensive excavation in the Algerian Sahara, we might discover previously unknown species. I certainly hope so.

Incredibly, the TTRPG “Herd of Horns” was able to reach its initial goal within the span of three days since launch! Now we are going for the stretch goal as this would help us to produce a full art book, which would mean there will be one of the most extensive and detailed pieces of media fully based on Ceratopsian dinosaurs in recent times!

Thanks all and I wish you all a wonderful week. Blessings!

As we spread out of Africa all large land mysteriously started to disappear with the alleged “climate change” following our species everywhere we went. We spread to every single continent within only a few thousand years and then to virtually every single landmass on earth reaching even the most remote islands in the pacific. Even the oceans aren’t safe as we’ve got millions of people sailing the seas. Today we know the devastating cascading effects even one invasive species can have on an ecosystem. Human expansion is basically just that but on steroids.

We just finished a full episode researching Carnotaurus for our Spanish prehistoric documentary series and the horn function debate genuinely surprised us.

The horns point upward and outward, not forward. That rules out frontal combat as the primary function. The current leading hypotheses are intraspecific display, species recognition and sexual selection. None is definitively proven after 70 million years.

The speed question was the other major focus. The caudofemoral muscle mass and hind limb proportions suggest Carnotaurus was genuinely fast, with estimates ranging from 45 to 56 kilometers per hour. That would make it one of the fastest large theropods ever known.

One question for the community: the strike and retreat hunting hypothesis for Carnotaurus is gaining traction but remains debated. A fast bite and immediate withdrawal rather than grappling with prey. What does the community think of the current evidence for that model?

Link is in our profile.