#ceratosaurus nasicornis

[shadowyuty]

Background practice featuring a Ceratosaurus at early sunset, the background is a bit off but the lighting is okay.

[he-who-needs-to-be-silenced]

Ceratosaurus nasicornis in a Morrison forest at night

Done in procreate at 10 pm with the chalk brush

[joitiks]

graysexual ceratosaurus & questioning allosaurus !!

they can both be found here ~

[saritawolff]

#Archovember Day 10 - Ceratosaurus nasicornis

Type species of the Ceratosauria, Ceratosaurus nasicornis was a medium-sized predator from Late Jurassic North America. It was characterized by deep jaws and 3 prominent horns on its head. It also had a ridge of small osteoderms down it’s back, as well as elsewhere across its skin.

Late Jurassic North America seemed to be ruled by a trifecta of theropod apex predators: Torvosaurus, Allosaurus, and Ceratosaurus. There have been multiple studies on how these predators could have coexisted without direct competition, but it was likely due to niche partitioning. Ceratosaurus could have preferred different prey items, and even different parts of a carcass when scavenging. Ceratosaurus had thin, elongated teeth in comparison to the other theropods, and could have even hunted semi-aquatic prey like lungfish, crocodiles, and turtles.

The Morrison Formation is well-known for the sauropods that dominated the region. These include Apatosaurus, Brachiosaurus, Camarasaurus, and Diplodocus. There were also small theropods like Ornitholestes, and ornithischians like Camptosaurus, Dryosaurus, Nanosaurus, the ankylosaur Gargoyleosaurus, and Stegosaurus. There were both aquatic and terrestrial crocodylomorphs like Hoplosuchus, and pterosaurs such as Harpactognathus and Mesadactylus. Ceratosaurus and related species of most of the Morrison Formation’s fauna have also been found in the Lourinhã Formation of Portugal, along with the sauropods Dinheirosaurus and Zby, and the stegosaur Miragaia.

[confusedhadrosaur]

Day 10:  Ceratosaurus nasicornis

[mineralsrocksandfossiltalks]

SISTER FORMATIONS: MORRISON, LOURINHA AND TENDAGURU

Back in the Late Jurassic Period, North America, Europe and Africa were next door neighbors.

This is reflected in the similarity of the lithology, and fauna of the rocks. In North America, we have the Morrison Formation, in Europe we have the Lourinha Formation, and in Africa we have the Tendaguru Formation. All of these are contemporaneous or sister formations.

Stratigraphy

The Tendaguru Formation is approximately 177 m thick and broken up into five members: Lower Dinosaur Member (cross-bedded, fine-grained sand and siltstone w/interbedded clay), Nerinella Member (trough cross-bedded and massive sandstone indicating a tidal channels, sandbars and beaches),

Middle Dinosaur Member ( ripple, cross-bedded, fine-grained calcareous sandstone and siltstone and massive to crudely bedded siltstone and claystone indicating tidal flats and lagoons),

Indotrigonia Africana Member (calcite cemented sandstone, conglomerate, thin claystone, and siltstone with sandy limestone indicating tidal and deltaic channels),

and the Upper Dinosaur Member (ripple, cross-bedded, fine-grained sandstone and siltstone with interbedded claystone and micriitic carbonates indicating tidal flats).

The Lourinha Formation is about 200 to 1000 meters thick and is broken into about 5 members: Praia da Amoreira Member (massive mudstone with meter thick sandstone lenses and calcrete layers indicating a meandering river system),

the Porto Novo Member (cross-bedded sandstone indicating a deltaic system), the Praia Azul Member (marl and mudstone indicating brief marine transgression),

and the Santa Rita and Assenta Members (mudstone, caliche, shelly carbonates near the top indicating a landward side of a deltaic system) which are equivalent members from different basins.

The Morrison, as stated previously, is about 200 m thick and consists of 11 different members. I will not go into detail about them again but it should be noted that the formations are approximately the same thickness and made of primarily sand, silt and mudstone.

DINOSAURS

Now for the other fun part: the dinosaur fauna. There are some dinosaurs that are shared between two or all of the formations. These include Ceratosaurus nasicornis in the Morrison and a possible Ceratosaurus in the Tendaguru

and in the Lourinha, Torvosaurus tanneri in the Morrison, Torvosaurus gurneyi in the Lourinha, and a possible Torvosaurus species in the Tendaguru,

Allosaurus fragilis in the Morrison and Allosaurus europaeus in the Lourinha,

Dryosaurus altus in the Morrison and a possible Dryosaurus species in the Lourinha,

Miragaia longicollum in the Lourinha and possibly Miragaia longispinus in the Morrison. Though if that's true, the genus would be Alcovosaurus because that was named first.

And then there are the dinosaurs that were similar to each other in each formation. Filling in the niche or living alongside Dryosaurus was Dystalotosaurus of the Tendaguru,

Eudryosaurus in the Lourinha, and Nanosaurus in the Morrison.

There's Draconyx in the Lourinha and Camptosaurus in the Morrison as early iguanodonts.

Kentrosaurus in the Tendaguru, Dacentrurus in the Lourinha and Stegosaurus and Hesperosaurus in the Morrison are the main stegosaurs.

For ankylosaurs, there is Dracopelta in the Lourinha and Mymooropelta and Gargoyleosaurus in the Morrison.

Then there's Dicraeosaurus of the Tendaguru and Suuwassea of the Morrison.

Giraffatitan of the Tendaguru, Lusotitan of the Lourinha and Brachiosaurus of the Morrison all represent brachiosaurs.

Janenschia of the Tendaguru and Haplocanthosaurus of the Morrison represent early sauropods.

Tendaguria of the Tendaguru and Zby of the Lourinha are even earlier sauropods.

Torneiria of the Tendaguru and Deinheirosaurus of the Lourinha are the diplodocids that match up with the bagillion in the Morrison.

Lourinhasaurus is the camarasaurid representative of the Lourinha.

The Tendaguru and the Lourinha have early carcharadontosaurs in the forms of Veteruristisaurus and Lusovenator.

Lourinanosaurus is the European equivalent of Marshosaurus in the U.S.

And Elaphrosaurus of the Tendaguru is the small to medium-sized equivalent of Tanycoalgreus in the Morrison.

This was a ton of info so if you want it more broken down, message me! I am happy to walk you through it all! Enjoy your weekend!

[jurassicjoowan]

Amphibious Ceratosaurus design for a friend's project about mutant dinosaurs.

The Ceratosaurus present on the tour have garnered a nasty case of hunchback posture due to their ambush-dependent life style, which proves to be effective with their sabre-esque teeth piercing the vital areas of vulnerable meals. Fortunately this mutation is subsided by their adaptive ability to swim in rivers, lagoons, and other bodies of water. Their frog-like coloration allows for camouflage in sun-tinted waters, preventing fish and other dwellers from noticing such a behemoth. Each Ceratosaur is armed with webbing in between their toes, allowing for a more powerful kick through their aquatic territory.

---- Artist Commentary ----

Wooo, this was a fun design, terribly sorry for the lack of proper art in my recent posts. I've been backed up with college and work, but I finally got this design to (digital) paper! The design was a mix between retro and modern depictions of Ceratosaurus nasicornis, featuring pebble like skin, a hunched posture, along with a lean frame as seen in modern reimaginings of the Morrison Menace. There's also the inclusion of the preposterous aquatic ceratosaur theory to give it that slightly bizzare edge.

[paleostock]

Ceratosaurus

Ceratosaurus nasicornis is a species of theropod dinosaur from the Late Jurassic of North America.

License this stock resource at: https://paleostock.com/resource/ceratosaurus-stock-photo

Illustration by Mohamad Haghani

[tsaagan]

Animatronic Ceratosaurus nasicornis, Dinosauria, Oulu, Finland

[ilraksroost]

Made myself a little "personal taxonomic ranking" card because I am a nerd and wanted to make something fun related to my identity.

It's also a handy little visual for the way this particular set of identities nest within each other.

Image ID and more description below the read more!

Basically:

Domain is standing in for the broadest sense, the "Who I Am" rather than "What I Am".

Kingdom would be Alterhuman in this case. Of course there are other "Kingdoms" that make me what I am, but we're focusing on this one and narrowing down the exact identity from there.

Phylum narrows down to an important determining factor of this alterhumanity. I identify as, not identify with, which puts me into a different category (and if I identified with instead of as, that would open up other categories as well!).

For Class, the question is, do I identify as some sort of alterhuman human (such as some fictionkin) or do I identify as something non-human? Since I identify as something non-human, that would be my personal taxonomic class.

Order is where we get more detail. I don't identify as humanoid so non-humanoid is the order I am in!

Now for Family, this is where we get into some of the labels where you would find Otherkin, Therianthrope/Therian, Folcintera, Stelliferoforme, Fictherian, and other more narrow identity terms. Once upon a time, you'd have found me in otherkin or therian, but I feel the term I have in this essay, stelliferoforme, is a better fit to describe my identity.

From there we get what type of stelliferoforme I am and that's where my "Ceratocorvus" (also the name of the innerworld and system) comes in, since I am equally a ceratosaurus and a raven in this identity. And then the species name because, again, I'm a nerd.

[Image ID: An infographic on a starry background. The stars in the back look like a nebula.

Centered in the infographic, in large, bold font, reads the following:

Ilrak

Domain: Who I am

Kingdom: Alterhuman

Phyllum: Identify-As

Class: Non-human identifying

Order: Non-humanoid identifying

Family: Stelliferoforme

Genus: Ceratocorvus

Species: Ceratocorvus nasicornis

/.End ID]

[shadowyuty]

A fineliner sketch of a Ceratosaurus skull. Haven't really sketched the skull only of anything before but for a first sketch of a dinosaur skull i think its okay.

[competitivecharge55]

My dinosaur OC called, Psychoticus rex

It is a hybrid of Tyrannosaurus rex, Giganotosaurus carolinii, Carnotaurus sastrei, Ceratosaurus nasicornis, and Allosaurus fragilis.

Standing up to 27 feet tall, measuring up to 53 feet long, and weighing up to 47,000 pounds, it is the largest carnivorous dinosaur that ever existed.

It is a carnivore, meaning it eats everything that moves, including humans. It is a apex predator meaning it had no natural enemies, although the T. rex, the Spinosaurus, and the Giganotosaurus were the competitors of the P. rex.

He’s no generic predator since he does have a personality. He is tyrannical, malevolent force of nature, meaning he is a truly sadistic beast capable of showing no empathy. Kills random creatures, including dinosaurs and mammals, not for food, but for pure sadism.

The Psychoticus rex is nevertheless responsible for multiple genocides of humans, dinosaurs, and other animals, because he attempted to destroy and conquer the entire island.

[dinodorks]

it's all in the hips

by Via Tsuji

[coprolite-posting]

Guess I forgot to upload this here!

It's a Ceratosaurus, done in a... Sketchier? Art style inspired by some of the stuff I saw on the BLM stream. Kind of gives me Lisa Frank vibes, between the glittering bisexual cloudscape and the leopard-type markings on the dinosaur itself.

In terms of design:

I made the crests and back spines more decorative, with a fire-colored gradient, while the rest of the body more or less looks like a leopard and/or wall lizard of some sort.

Normally I keep my theropods' teeth covered, but Ceratosaurus has some. Very long chompers, so they stick out a bit.

The fourth finger isn't visible, since most newer skeletals show it as probably too small to be, but I tried to imply the bones present in the shape of the hand.

I didn't give him any feathers because afaik he doesn't have any close relatives confirmed to have them, plus it has confirmed osteoderms and is believed to be a morphologically basal relative of abelisaurids. (God I hope that made sense.) Abelisaurids are known to be bumpy boys- or, you know, at least some are, making it more likely for their relatives to share this trait. To be honest, I'm a bit worried I made the skin a little too lumpy, but part of that is because of how the shading was done (not to mention most animals- especially larger ones, and this guy would be pretty large by today's standards, even if its not exceptional among theropods- don't have perfectly smooth skin). I tried to imply scales with the highlighting, but I think I could've done a better job by shading some in as well.

The eye is yellow with a hint of greenish, primarily based on birds of prey and wolves' eyes. I'm almost certain I attempted to give it round pupils, although the lighting makes it hard to tell; if I didn't, I'll just say I did, because he's, once again, a decently-sized animal (maybe taller than a person and much, much longer).

He has an ear- something along the lines of a little pocket at the edge of the head. I do worry if it's too close or too far away from the hole in the skull it connects to.

Hope you enjoy!

[saritawolff]

Oof, November is already one week away. This year went so fast…

In any case, this means it is time for another Archovember!

If you’re new here, this is my version of Draw Dinovember that I started doing four years ago to challenge myself to draw not only dinosaurs but other Archosauromorphs that I have less practice with. It usually features a somewhat even mix of dinosaurs, pterosaurs, pseudosuchians, and a handful of oddball outliers.

Anyone can feel free to join in! I will be most active on my Instagram (SaritaPaleo), sharing art of the featured species for the day in my story, including that of anyone who joins in and uses the tag(s). But you can certainly post any of your submissions here too! The animal prompt for each day should be posted on or after their specific day, but can be drawn at any time. You can also join in at any time and don’t necessarily have to draw every animal. The point is to have fun and learn about some interesting prehistoric critters!

In case the graphic is hard to read, here is the list:

1. Your Choice!

2. Dino - Qianzhousaurus sinensis

3. Ptero - Hatzegopteryx thambema

4. Croc - Mahajangasuchus insignis

5. Other - Yarasuchus deccanensis

6. Dino - Regaliceratops peterhewsi

7. Ptero - Dearc sgiathanach

8. Croc - Carnufex carolinensis

9. Other - Doswellia kaltenbachi

10. Dino - Ceratosaurus nasicornis

11. Ptero - Batrachognathus volans

12. Croc - Sebecus icaeorhinus

13. Dino - Lambeosaurus lambei

14. Other - Proterosuchus fergusi

15. Ptero - Ferrodraco lentoni

16. Dino - Shuvuuia deserti

17. Croc - Shamosuchus djadochtaensis

18. Ptero - Caviramus schesaplanensis

19. Dino - Mamenchisaurus sinocanadorum

20. Croc - Arizonasaurus babbitti

21. Other - Smok wawelski

22. Dino - Kentrosaurus aethiopicus

23. Ptero - Sordes pilosus

24. Croc - Burkesuchus mallingrandensis

25. Dino - Pachycephalosaurus wyomingensis

26. Other - Chanaresuchus bonapartei

27. Dino - Animantarx ramaljonesi

28. Ptero - Quetzalcoatlus lawsoni

29. Croc - Batrachotomus kupferzellensis

30. Dino - Concavenator corcovatus

(Also, for new paleoartists: as a heads up when looking for refs you will come across David Peters. It is ill-advised to use any refs from the websites “pterosaur heresies” and “reptile evolution” as all those skeletals come from him and his own personal imagining of the tree of life and are usually pretty innacurate. If you have any trouble finding accurate references, I am more than happy to share the ones I’ll be using!)

[antiqueanimals]

Wayne Barlowe. Jurassic Siesta, Ceratosaurus nasicornis (Alphabet of Dinosaurs, by Peter Dodson, 1995).