julius csotonyi

CELEBRATE CERATOPSIANS!

If a Ceratopsian is not included, halfway decent art of it doesn’t exist

Albalophosaurus by @ryuukibart

Micropachycephalosaurus by IJReid

Stenopelix by Danny Cicchetti

Yinlong by Green-Mamba (Deviantart) 

Chaoyangsaurus by Nobu Tamura 

Psittacosaurus by H. Kyoht Luterman 

Archaeoceratops by Nobu Tamura

Auroraceratops by Masato Hatton

Helioceratops by FunkMonk

Koreaceratops by Cheungchungtat on Deviantart 

Liaoceratops by Nobu Tamura

Microceratus by chill13 on Deviantart 

Mosaiceratops by Danny Cicchetti 

Ajkaceratops by Nobu Tamura

Aquilops by Nobu Tamura (seems to be one of the few people actually giving Ceratopsians quills) 

Cerasinops by Nobu Tamura 

Montanaceratops by green-mamba on Deviantart

Ischioceratops by @ryuukibart

Prenoceratops by Nobu Tamura

Leptoceratops by Mohamad Haghani

Udanoceratops by Xiphactinus on Deviantart

Zhuchengceratops by Nobu Tamura

Unescoceratops (on the log) and Gryphoceratops (on the ground) by Julius Csotonyi

Graciliceratops by Nobu Tamura

Protoceratops by Medenadragon on Deviantart 

Bagaceratops by Azraelangelo on Deviantart

Lamaceratops by Andrey Atuchin

Platyceratops by Xiphactinus on Deviantart

Zuniceratops by Todd Marshall

Turanoceratops by FunkMonk

Ceratops by Robinson Kunz

Xenoceratops by Julius Csotonyi 

Monoclonius by Mariana Ruiz Villarreal

Coronosaurus by Tuomas Koivurinne 

Nasutoceratops by Rudolph Farkas

Styracosaurus by Mark Witton 

Centrosaurus by Mariana Ruiz Villarreal

Spinops by Nobu Tamura

Avaceratops by Tuomas Koivurinne

Machairoceratops by @thewoodparable

Diabloceratops by @artisticthingem

Albertaceratops by Nobu Tamura

Sinoceratops by @apsaravis​ and Kahless28 on Deviantart

Wendiceratops by Danielle Dufault 

Rubeosaurus by Tuomas Koivurinne

Einiosaurus by Green-Mamba on Deviantart

Achelousaurus by Mariana Ruiz Villarreal

Pachyrhinosaurus by Mark Witton

Vagaceratops by Connor James Lachmanec

Kosmoceratops by Green-Mamba on Deviantart 

Chasmosaurus by Raul Martin

Mojoceratops by Nobu Tamura

Agujaceratops by Nobu Tamura

Utahceratops by Tuomas Koivurinne 

Pentaceratops by Green-Mamba on Deviantart

Bravoceratops by Tuomas Koivurinne

Coahuilaceratops by José Vitor E. da Silva

Anchiceratops by Tuomas Koivurinne

Arrhinoceratops by Brian Franczak

Regaliceratops by Julius Csotonyi

Eotriceratops by Tuomas Koivurinne

Ojoceratops by Brad McFeeters

Titanoceratops by Mariana Ruiz Villarreal

Nedoceratops by Nobu Tamura

Judiceratops by Nick Longrich

Medusaceratops by Nobu Tamura

Mercuriceratops by Andrey Atuchin

Dysganus by Robinson Kunz

Spiclypeus by @ryuukibart

Polyonax by Robinson Kunz

Tankaceratops by Nobu Tamura

Torosaurus by Linda Bucklin

Triceratops by Mark Witton 

I hope you’ve enjoyed Celebrate Ceratopsians Week! If you’d like more dinosaur-group theme weeks in the future let me know! 

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New species of dinosaur, the regaliceratops, discovered in Canada

When fossil experts first clapped eyes on the skull, it was clearly from a strange, horned dinosaur. When they noticed how stunted the bony horns were, its nickname, Hellboy, was assured.

The near-complete skull of the 70 million-year-old beast was spotted by chance 10 years ago, protruding from a cliff that runs along the Oldman river south of Calgary in Alberta, Canada.

Painstakingly excavated, cleaned up and measured since then, the fossilised remains have now been identified as a relative of the three-horned triceratops, and the first example of a horned dinosaur to be found in that region of North America.

Continue Reading

3

NEW DINOSAUR ALERT!!!!!

Nickname: “Hellboy”

The bones of the new species, which lived in the Cretaceous some 70 million years ago, were found about a decade ago near a river in southeastern Alberta, Canada. But, it wasn’t until the specimen was being prepared that its “comically small” eye horns were noticed, says Caleb Brown of the Royal Tyrrell Museum of Palaeontology in Alberta.

"Once it was prepared it was obviously a new species, and an unexpected one at that. Many horned-dinosaur researchers who visited the museum did a double take when they first saw it in the laboratory,” he says.

Read more here!

Skull photo: Sue Sabrowski/Courtesy of Royal Tyrrell Museum, Drumheller, Alberta.

Artist’s representation: Julius T. Csotonyi/Courtesy of Royal Tyrrell Museum, Drumheller, Alberta

rasec-wizzlbang  asked:

do you think any prehistoric creatures have been reconstructed totally incorrectly because the only fossil of a species found happened to be some kind of individual mutation?

It’s happened before - in a way.

Atopodentatus was a semi-aquatic reptile from the Middle Triassic of China that baffled its discoverers with its strangely shaped mouth.  The original specimen had a hooked snout with a vertical split down its middle, the sides of which were lined with tiny teeth.  Its bizarre dentition led researchers to believe that it was a filter-feeder of some sort, using its uniquely shaped mouth to suck up small invertebrates.

(Image by Julius T. Csotonyi.)

However, just this year, better-preserved specimens of Atopodentatus were found, revealing that the “zipper-mouth” displayed by the original specimen was simply an artifact of poor fossilization.  The skull had been crushed and forced into an unnatural shape.  In reality, Atopodentatus was a “hammerhead” that used its wide jaws to mow algae from the sea floor.  (This makes Atopodentatus the earliest known herbivorous marine reptile - one of only three known to science, including the Late Cretaceous tuatara relative Ankylosphenodon and the modern marine iguana.

However, Atopodentatus is by no means unique.  Numerous extinct species are known only from single, poorly preserved specimens, which may have lead to incorrect interpretations of how these creatures would have looked in life.  If additional fossils of these species are never discovered, our conceptions of them may stay incorrect forever.

Some scientists have speculated that snakes first evolved in water and that their long, slithery bodies were streamlined for swimming. But a new analysis suggests that the most recent common ancestor of all snakes actually lived on land.

This ancestral protosnake probably was a nocturnal hunter that slithered across the forest floor about 120 million years ago. And it likely had tiny hind limbs, left over from an even earlier ancestor, says Allison Hsiang, a researcher at Yale University.

“They probably weren’t using them in locomotion in any way, but they did probably still have vestigial hind limbs stuck on the back of their bodies,” Hsiang says.

The evolutionary origin of snakes has been a bit of a mystery for scientists, because the fossil record has an unfortunate dearth of snakes. “For a long time there weren’t very good snake fossils,” says Hsiang, who explains that researchers had not found “things that sort of told us what snakes looked like early on, or transitional fossils between snakes and their closest ancestors.”

Earth’s First Snake Likely Evolved On Land, Not In Water

Illustration: Julius Csotonyi/BMC Evolutionary Biology

Some scientists have speculated that snakes first evolved in water and that their long, slithery bodies were streamlined for swimming. But a new analysis of a several fossils discovered in the last decade suggests that the most recent common ancestor of all snakes actually lived on land. It also had tiny little ankles and toes, leftover from its days as tetrapod.

Artist rendering: Julius Csotonyi/BMC Evolutionary Biology

partlysmith  asked:

Is it possible that any dinosaurs had caruncles

A caruncle is a fleshy protuberance on the face, neck, or chest of a bird, including the wattles of cassowaries, the snoods of turkeys, the combs of chickens, and many others.  If a bird has a weird, fleshy protuberance of some sort, it’s probably a caruncle.  (I had never heard this term before; it’s good to know that there’s a catch-all.)

(A handsome king vulture - Sarcorhamphus papa - sporting some fashionable caruncles.  Photo by Csaba Godeny.)

Caruncles are usually used for sexual display.  In some types of birds, such as turkeys, the caruncles become flushed with bright color during mating season.

Since these structures are quite widespread among modern birds, it seems almost certain that some dinosaurs would have had these structures as well.  The bony crests of some theropods, such as Monolophosaurus from the Middle Jurassic of China, may have supported large soft-tissue display structures.  However, since soft tissue rarely fossilizes, we may never know for sure.

(The skull of Monolophosaurus, with its unusual crest.  Photo by Kabbachi on Flickr.)

The only dinosaur known to have had a caruncle (to my knowledge) is Edmontosaurus, a hadrosaur from Late Cretaceous Canada and the United States.  Although Edmontosaurus has been known to science since 1892, it wasn’t until 2013 that a specimen was discovered with a preserved “comb”, like that of a chicken.  Other “crestless” hadrosaurs may have possessed soft-tissue caruncles like this as well.

(Image by Julius Csotonyi.)