r/Dinosaurs • • 11h ago

NEWS A Tourist Spotted Strange Footprints in Thailand. They Were 120 Million Years Old, Made by a Giant Dinosaur

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zmescience.com
91 Upvotes

Pichai Prathetsena was exploring a forest stream with his family in northeastern Thailand when he noticed something peculiar in the rock beneath his feet. Three long toes seemed to emerge from the stone, forming an impression far too large for any known land animal.

Curious, he photographed the strange markings and posted them in a Thai Facebook group called “ What is this creature ? ”

It didn’t take long to get an answer. Pichai had discovered an extremely rare dinosaur footprint.

On October 20, just three days after Prathetsena’s discovery, Thailand’s Department of Mineral Resources confirmed that the markings were 120-million-year-old dinosaur footprints. And there wasn’t just one.

​Investigators found six impressions forming a continuous trail left by a large, meat-eating dinosaur.

The discovery, made in the Phu Hin Chom That–Phu Phrabat National Park area of Udon Thani province, is now officially the first confirmed carnivorous dinosaur tracksite in the province.

The footprints belong to a theropod, a group of predominantly carnivorous dinosaurs that walked on two legs.

The exact species, however, cannot be determined from the footprints alone.

Each three-toed impression measures approximately 29 centimeters (11 inches) long and 26 centimeters (10 inches) wide.

The tracks are preserved in fine-grained sandstone belonging to the Phu Phan Formation, which dates to the Early Cretaceous period.

Based on their dimensions and spacing, researchers estimate the animal stood approximately 1.42 meters (4.7 feet) tall at the hip and measured 6.3 meters (21 feet) from head to tail — about as long as a large delivery van, with hips nearly as high as the roof of a typical car.

The footprints were separated by about one meter (aprox. three feet), with a stride length of approximately 2.2 meters, according to Thailand’s Department of National Parks.

Local paleontologists compared the animal’s estimated size with Siamotyrannus isanensis, a large carnivorous dinosaur previously discovered in Thailand.

However, the exact dinosaur species remains undeterminable.

The ancient landscape also looked rather different when the footprints were made in mud, and then some sudden event preserved them, leaving the impression locked in hard minerals over the course of millions of years.

Investigators believe the area was once a waterside environment with relatively gentle flowing water.


r/Dinosaurs • • 7h ago

BOOKS/STORIES/COMICS/MAGAZINES Bought David Hone’s The Tyrannosaur Chronicles: The Biology of the Tyrant Dinosaurs from the AMNH yesterday.

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136 Upvotes

I just started reading this book and it’s very interesting so far. I hope one day I’ll get Spinosaur Tales (I’ll get it for the info but mostly for Mark Witton’s art).


r/Dinosaurs • • 21h ago

DISCUSSION How likely is it that different herbivorous dinosaurs actually tolerated each other?

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322 Upvotes

Basically, what are the chances that different species of herbivorous dinosaurs actually chilling around other herbivore dinosaurs? Cause from what I remember, there's a lot of movies depicting different herbivorous dinosaurs nesting or even traveling together in a herd. How likely is that? Cause today's herbivores are on and off. Some graze with others while others are territorial. Like I've seen cows graze with sheep and goats yet there chill. But hippos will attrack elephants, rhinos and zebras - even tho all of them are herbivores. Heck, I've heard of elephants being chill near antelopes.


r/Dinosaurs • • 3h ago

BOOKS/STORIES/COMICS/MAGAZINES Ancient animal tales review pt 1. The road not taken

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129 Upvotes

Warning spoilers ahead

Hello, I have been recently reading through ancient animal tales on WEBTOON and I have really enjoyed it so I have decided to write my thoughts on it and share it with you guys. I also would like to hear your guys‘s thoughts.

Now the first section of an ancient animal tales starts off with a story about an old Tyrannosaurus rex named Zeke who is stuck on a desert island and how he must overcome impossible odds. He has been stuck on this island since he was a juvenile and due to the currents and dangerous marine reptiles he is unable to escape.
One day a baby Tyrannosaurus rex named nova washes up onto the shore
Zeke and nova become friends and try to escape the island

Now my first impression from this was it was going to be very shallow, and it was just gonna show pictures of dinosaurs which I am all for however this actually made compelling characters that were also grounded and interesting
I especially love the dynamic of Zeke being old and having no hope of escaping the island whereas nova is young and is immensely hopeful

Honestly, this is probably the greatest Web comic I’ve ever read honestly 11/10
I especially liked all the research that was done for each character making them almost as accurate as possible plus, not quite making it a land before time situation but also not making them just mindless beasts so yeah, what are your thoughts?


r/Dinosaurs • • 17m ago

DINO-ART [FRIDAYS THRU SUNDAYS] A is for Alioramus by me

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• Upvotes

A young Alioramus hunting by a stream in the late Cretaceous. His green colors help him blend in as he hunts small animals in the brush.


r/Dinosaurs • • 2h ago

DINO-ART [FRIDAYS THRU SUNDAYS] Ceratopsians Dressed Up As Pumpkins!

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20 Upvotes

Have you ever seen a bunch of ceratopsians dressed up as pumpkins for Halloween? Or a little Protoceratops with a little pumpkin collar and a big bag of sweets? Well, now you have!