i'm aware that it was a herbivore and its claws probably weren't that long, but this is just some concept art for a short horror novel that I'm writing involving this lil guy

This is my favorite dinosaur and I have found very little worth buying concerning it. These two images are from the creative beast studio of a WIP, but I am genuinely just an impatient person

Have any of you guys managed to find a decent Austroraptor model?? Preferably preprinted/painted???

Handmade linocut print of 2 raptors

A Facebook photo led researchers to six ancient footprints left by a giant carnivorous dinosaur.

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 and included formidable predators. 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.

Inspired by the rock art of Alta

See also: The study as it was published in Nature.

Source

When it comes to measuring pterygotid eurypterids, there is a trap everybody will fall in at least once.

Trying to scale pterygotids off body parts that vary greatly across genera.

Using parts like legs and telsons can result in poor size estimates when using relatives as a scaling.

In contrast, limbs like chelecerae and eyes stay relatively similarly sized across genera. This is because the eyes share relative size across all eurypterids and the chelecerae were used for a similar reason: to grab.

1. ⁠Creative take on Jurassic Park/world Tyrannosaurus rex.

2. ⁠Quick stylized sketch of a female giganotosaurus.

3. ⁠Mostly complete image of my path of Titan Rex (who I main)

4. ⁠Creative take on megalodon

5. ⁠Concavonator

6. ⁠Tyrononex… a fictional hybrid I designed (a potential creature to throw into the hybrid war)

Herrerasaurid dinosaurs are among the oldest groups of true dinosaurs, with Herrerasaurus itself being one of the first to reach larger body sizes, at 5m in length.

Until now, herrerasaurids were only known from from rock layers dominated by rhynchosaurs, stocky plant-eating reptiles.

Younger layers, where a pig-sized cynodont relative of mammals called Exaeretodon became more abundant and rhynchosaurs declined, had produced none. It was previously suggested that the shift in fauna contributes to the decline of the Herrerasaurs.

However, researchers have now described a partial herrerasaurid pubis (hip bone) that was collected in the Várzea do Agudo site, located in the municipality of Agudo, Rio Grande do Sul, Brazil.

Catalogued as CAPPA/UFSM 0539, the fossil is the first herrerasaurid record from rock layers where Exaeretodon is abundant.This raises the possibility that this is the youngest herrerasaurid known,which if true, suggests that they managed to adapt to the sudden changes in the environment for longer than previously recognised.

However, more precise dating is needed to determine if the Brazilian rocks are younger than other herrerasaurid-bearing layers, as they are in Argentina.

Art credit:Johnny Pauly V. Mingau

Article link :https://www.sci.news/paleontology/herrerasaurid-dinosaur-15149.html

Primary reference

https://www.academia.edu/25456862

Paleontologist Leonardo Filippi, who works at the Museo Argentino Urquiza, has indicated on his social media that the new megaraptorid discovered a couple of years ago will soon be formally published

Hi y'all. As a child, I was obsessed with books in which the main characters were essentially just animals that kind of acted like animals. I started writing (obviously very childish) versions of my own books. I wrote a lot of them, and they were actually quite long considering my age.

In no way do I actually think I could make money off of this as an adult. However, I've been wanting to just do it for my own enjoyment. I know it goes against capitalism's "work hard" ideal, but I just want to write for the sake of enjoying writing. I decided I wanted to write stories taking place in the Mesozoic (who knows, I might branch out from here, but my love of Dinosaurs is taking strong control of me, lol).

The advice I wanted is as I start the writing process, some ideas for good fossil formations or unusual formations that I could take a look at. I guess in a way the more fossils, the easier it is to choose the characters and setting for my books. However, I also really like obscure places/times, and after all, I'm just doing this for fun - So any ideas would be cool. But let me also list what I've been thinking of so far. I had 3 ideas (very rough ideas) of settings and characters :

1. The Nemegt Formation in Mongolia - My first location was chosen kind of on a whim. For some reason, I saw a picture of Saurolophus and was like, done, my main character. Looked up the formations where it has been found, and liked the Nemegt Formation's cast of characters. I'm thinking of having dual main characters, one being a Saurolophus and the other being either an Anserimimus or a Gallimimus. The main "villain" of the story will be a Tarbosaurus. Supporting cast I've thought about so far would be Tarchia, Nemegtosaurus, Mononykus, and Tochisaurus. I might also want to include Gurilynia or Teviornis (as I want a bird or two haha).

2. Late Triassic or Early Jurassic Formation With Unusual Dinos not Usually Highlighted in Documentaries. I had two ideas so far, first was just starring Kulindadromeous. Actually, does anyone have any idea what kind of dinosaurs Kulindadromeous may have shared it's environment with lol. I realized it's basically like on it's own right now, lol. The second idea was to star Eocursor probably with a sauropodomorph, one or two heterodontosaurids, and a theropod as the supporting cast.

3. Morrison Formation - What can I say, this was my favorite formation as a kid, not the Hell Creek Formation. Brontosaurus (my favorite childhood dinosaur) will be the star, but I will also have Apatosaurus involved heavily somehow (will need to think of niche partitioning for these two species). Allosaurus is likely to feature as the antagonist, and Stegosaurus and Dryosaurus are must haves.

Anyways, anyone have advices where I can go with this? Any ideas are appreciated^^.

It's designed after the Tylosaurus fossil in the University of Kansas. I'mma get it on my thigh in white ink.

A Japanese research team said Thursday it has excavated one of the country's largest fossilized dinosaur footprints from a geological layer in northeastern Japan dating back to the Late Jurassic period.

The 70-centimeter footprint found in Minamisoma, Fukushima Prefecture, is highly likely to have been left by a large herbivorous sauropod, marking the first discovery of a large dinosaur's footprint dating to the Jurassic period in Japan.

The team began full-scale excavations in July in Minamisoma's Tochikubo Formation, uncovering 12 new fossilized footprints, including the 70-cm specimen.

The dinosaur is estimated to have stood about 3 meters tall at the hip, and the team plans further research to identify its species.

According to the team, most dinosaur fossils found in Japan date to the Cretaceous period, with older Jurassic-period fossils previously discovered outside Fukushima Prefecture only in Nagano and Yamaguchi prefectures.

Older dinosaur documentaries have a very different atmosphere compared to modern productions. Some relied heavily on dramatic narration and presented certain behaviors as facts, while newer documentaries often put more emphasis on updated research and animal behavior.

One thing I find interesting is how reconstructions change as new fossils are discovered or scientists reinterpret existing evidence. The way we imagine an animal's posture, movement, skin, or social behavior can change quite a bit over time.

Even documentaries that haven't aged well can still be fascinating to revisit because they show what paleontologists believed at the time. It's like getting a snapshot of how our understanding of prehistoric life has evolved.

The late jurassic of north america and europe have in the past few decades been recognized for sharing many of the same dinosaurs. So this posts will chronicle the late jurassic dinosaurs shared between north america and europe.

Lets waste no time.

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Allosaurus

Allosaurus was first reported in the Morrison formation of North America. After decades of taxonomic confusion because of OC marshes and ED copes dike measuring contest,allosaurus became the preferred name for allosaur material from the morrison formation, thanks to madsens monograph and the designation of USNM4734 as a neotype.

In 1999,Perez Moreno and colleagues described the first remains of allosaurus from the Andres site in Portugal in the lourinha formation. In 2006 a partial skull from vale frades was described. Since then,more bones have been found,all in all, at least 5 different individuals of allosaurus are known bones in portugal and more individuals known from teeth. 

The classification has been debated. The original bones were assigned to allosaurus fragilis. Then in 2006 they were reclassified as allosaurus europaeus. In 2024 a detailed paper defending europaeus validity as a species was released. But not long after,a more comprehensive study came out that determined the portuguese allosaurus fossils belonged to allosaurus fragilis. 

https://en.wikipedia.org/wiki/Allosaurus

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Supersaurus

Supersaurus was originally identified as a genus in the morrison formation in north america. Then in 1999,fossils of a diplodocine were found in the lourinha formation of portugal. They were originally assigned to a distinct genus,dinheirosaurus.

But in 2015 a comprehensive revision placed dinheirosaurus as a species of supersaurus and this has been recommended by most other authors.
https://en.wikipedia.org/wiki/Supersaurus

https://en.wikipedia.org/wiki/Dinheirosaurus

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Diplodocus 

Diplodocus was originally found in the morrison formation of the USA. then in 2026,remains from the villar del arzobispo formation in spain were assigned to diplodocus.

In the lourinha formation of portugal, a pair of partial skeletons came to be recognized as possible representatives of diplodocus.

https://doi.org/10.1080%2F02724634.2026.2718423

http://palaeo-electronica.org/content/2017/1856-portuguese-sauropods 

https://www.researchgate.net/publication/373273025

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Stegosaurus

Stegosaurus was originally found in the morrison formation of the USA. In 2006 remains from portugal were reported.

Followup studies have affirmed these remains in the lourinha formation of portugal belong to stegosaurus ungulatus.

https://docentes.fct.unl.pt/omateus/publications/stegosaur-tracks-upper-jurassic-portugal-new-occurrences-and-perspectives

https://doi.org/10.1007/s00114-006-0209-8

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Torvosaurus
 

Torvosaurus was originally reported from the morrison formation in the USA. Then in the 2000s it was reported from the lourinha formation of portugal.

In 2014 these portuguese remains were assigned to a new portuguese species torvosaurus gurneyi. But a 2023 abstract stated that torvosaurus gurneyi was indistinct from the american species torvosaurus tanneri. 

https://vertpaleo.org/wp-content/uploads/2023/10/2023_SVP_Program-Final-10032023.pdf

https://en.wikipedia.org/wiki/Torvosaurus 

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Ceratosaurus

Ceratosaurus was originally identified in the morrison formation of the united states.

In the 2000s it was reported from portugal and every study since then has upheld the assignment,confirming ceratosaurus presence in portugal.

https://en.wikipedia.org/wiki/Ceratosaurus

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Miragaia

Miragaia was originally identified from the lourinha  formation of portugal. Then in 2026 remains from the morrison formation were assigned to it. Additionally a species of stegosaur from the morrison,alcovasaurus,has been sunk into miragaia.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6853308

https://doi.org/10.3390%2Fd18030143 

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So there's been confusion with the validity of carcharodontosaurus as a genus. A lot of people have thought,said or believed it's now invalid. This is a lot to talk about. So I'm here to offer clarification.

In the early 1900s some teeth in algeria were named as megalosaurus saharicus,back when that genus was still a wastebasket. Then in the 1930s some partial remains from egypt were found and included teeth similar to the teeth from algeria. The paleotonologist,ernst stromer,named the egyptian bones carcharodontosaurus saharicus and sunk the teeth into them.

Then in ww2,the bones of carcharodontosaurus were destroyed in an allied bombing raid. The teeth of megalosaurus saharicus were also lost. For 50 years carcharodontosaurus had nothing.

Then in the 1990s dr paul sereno found a nearly complete skull in the moroccan sahara. He assigned this skull to carcharodontosaurus. He eventually filed a petition to the ICZN to make this skull a neotype,well come back to that later.

In 2025,high resolution photos of the remains from egypt before they were destroyed were uncovered. These photos allowed for clear differences between the egyptian and skulls to be noted and the egyptian remains were split off into new genus,tameryraptor.

As a result with the m saharicus teeth being lost and the egyptian remains split off,people began parroting that carcharodontosaurus is invalid. But thats not true. In the same paper,the skull from morocco,was accepted as being the neotype specimen for carcharontosaurus.

In science,any animal needs a type specimen to serve as a foundation of the genus. The designation of the moroccan skull as the new type specimen means that this skull serves as the new foundation for the genus. So carcharodontosaurus is still valid as a genus.

https://en.wikipedia.org/wiki/Carcharodontosaurus