#sinoceratops

[lynxbriight]

DINOSAURS!

some of the cute horned dino-guys :3

[yee-qi]

perspectives is BACK babey! Check out #perspectives on my blog as we keep going forwards in time!

"See? Snake!" Palaeophis/Presbyornis/Striatolamia/Myliobatis/Pseudamia/Eutrichiurides Paleogene, 49 million years ago, Margaret Formation This was posted last week on my Patreon, available to $10 supporters!

For millions of years, the Earth has existed in a hothouse age.

Water evaporates and rains down, increasing the amount of freshwater flowing through Earth's rivers. As they drain into the enclosed Arctic Ocean, a non-salty layer of water emerges at the top.

Right now, the arctic is warm. It's practically entirely free of ice, even during the long polar darkness. Alligators lurk in the lakes under the midnight sun. And today, in the ocean, so does an enormous, almost-twenty-foot snake, coming up for air and startling a gaggle of Presbyornis in the process. Large even for her kind, she made her way through the ancient North Sea to bask in the polar summer. Warm-blooded, she is more resistant to changing temperatures than your average snake, and the bounty of food has encouraged her to remain here for the time being. With the ability to drink from freshwater on the ocean's surface, this Palaeophis toliapicus thrives in an environment where this is the norm. As the sun sets over the next few weeks, she will swim back the way she came, and repeat the journey every year.

Bizarrely, the Eocene arctic possesses relatively low diversity in marine life. It appears to be dominated by scores and scores of shed teeth belonging to relatives of sand tiger sharks and eagle rays. Aside from that, we see hairtail, smelts, and potentially bowfin. With the mingling of fresh and salt water, this ocean can potentially accomodate species from both environments.

Also notable is the presence of a dense plant carpeting the sea surface: Azolla. They capture carbon dioxide from the air, and as they die, sink to the seafloor, locking it away from the atmosphere. It is these plants that will send the planet spiralling into a cooling climate, culminating in the famous ice ages. Lush forests will slowly but surely be replaced by hardier fare, and then by sprawling glaciers. The arctic will freeze over, and the area will be rendered unrecognizable until a strange species of hairless apes dig up a plethora of shark's teeth in the Margaret Formation millions of years later.

But today, there's no need to worry about that. Today, a visitor arrives, takes a breath of that fresh, fresh air, and submerges herself in the water again, swimming off into the blue, as she has done for much of her life.

Palaeophis is a "sea snake" (actually related to the adorable elephant trunk snake) the size of a python. The toliapicus species is part of a clade of more flattened species with distinct oceangoing adaptations. I like to think that maybe they drank rainwater from the ocean's surface much like modern sea snakes, but that's speculation. It's possible the tropical climate of the time was what allowed them to grow to such massive sizes, and we have another species, colossaeus, from Mali that grew longer than an anaconda. We have no evidence of them ever going this far north, but I think it's possible. Presbyornis is a bird that looked as if one stretched a duck into the proportions of a flamingo, that was common during the Eocene. Its lineage has a long and storied history dating back to the latest Cretaceous, though none of its kind exists today.

Striatolamia and Myliobatis are known from teeth! Teeth everywhere! Unlike modern sand tigers and eagle rays, they are fully acclimated to brackish water. They make up much of the fossils in the area, indicating a surprisingly low-diversity environment.

[alex-fictus]

S is for...?

All of the S names in my Paleo Party - Mesozoic Edition! I have sooooooo many S names (Specifically in this group) I needed to make separate posts for the Eras lol

Are there any I'm missing?

Stickers || Phone Wallpapers Masterlist

[swan2swan]

JURASSIC WORLD: CHAOS THEORY

SEASON 4

November 20, 2025

Season 1 / Season 2 / Season 3

Camp Cretaceous

Season 1 / Season 2 / Hidden Adventure / Season 3 / Season 4 /Season 5

[derived-centrosaur]

Albertaceratops nesmoi and Sinoceratops zhuchengensis

A pair of not quite derived but not quite basal centrosaurs

I didn't get around to drawing a dinosaur last Sunday, so this week y'all get two, and color.

I got tagged in the reblogs of a couple posts last week, a pixel art Albertaceratops, and a herd of Sinoceratops, so they were on my mind so they got painted. Go send the other posts some love!

Thanks to @theenatiornithebandwagon for the shoutouts, both these artists are great, and my dash is better for it!

@tine5's pixel art is beautiful, and their Albertaceratops is no exception. I don't usually reblog other people's art, but the style is immediately recognizable as not mine, and it gave me an opportunity to ramble about basal vs. derived positions in the tags

@yee-qi's Sinoceratops is the (current) newest art piece in their Perspectives series, which I am a fan of. Their description of the art subject and what they based things on reminds me of my own long posts (my Horseshoe Canyon stuff). Also they have a diverse range of styles, and it's cool to see the contrast between the pieces.

[ildarotyrannus]

Last year, I started a series of dinosaur line art. This is the first "four". :)

Compsognathus longipes is a small theropod known from two skeletons from the Upper Jurassic limestones of Germany and France. The reconstruction is based on a smaller, German specimen. For a long time it was considered the smallest dinosaur, but now smaller taxa are known.

Sinoceratops zhuchengensis is a centrosaurine and currently the only genus of Asian ceratopsids. It is known for partial skulls with unusual collar ornamentation from the Upper Cretaceous of China.

Maiasaura peeblesorum is a hadrosaurid known from more than 200 specimens, including nests with eggs and cubs, from Montana and Alberta. It overturned previous ideas about the parental behavior of dinosaurs.

Hypsilophodon foxii is a small ornithischian known from a variety of specimens from England. It was previously depicted as an arboreal animal, but is now known as a terrestrial, running herbivore.

Black ballpoint pen, 2025.

[knuppitalism-with-ue]

Results from the #paleostream!

Gaiasia, Burnetia, Sinoceratops and Hemipsalodon

[dakooftacos]

!!! SOME JWCT / JURASSIC WORLD CHAOS THEORY SPOILERS AHEAD !!!

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Anywho, Magma Studio art jam round 2 with some of the Chaos Theory story artists to celebrate Chaos Theory Release weekend! Thank you so much to everyone who's taken the time to watch and get invested in our show. :] - Contributors included @neunhofferart, @tio-trile, @kngstr, Fernando Caire, and myself