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#stegosaurid
pimsri · 2 months
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The Rite of Spring : Glorification of the Chosen One
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greenfrog04 · 8 months
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The most complete Stegosaurid fossil found to date
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The skeletal remains belong to a member of the Stegosauridae family and is the Stegosaurids most complete individual found to date. The fossil is composed of semi-articulated well persevered cranial and postcranial elements; This fossil will be valuable in understanding the Stegosaurid group further.
Research is being conducted on the specimen currently and the paper will be published at a later date.
source:
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tyrannoninja · 2 months
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Miragaia longicollum is a stegosaurid dinosaur that lived in Europe around 150 million years ago, during the Late Jurassic Period. Although smaller than its iconic relative Stegosaurus, weighing little more than 2.2 tons and stretching out to only 21 feet from head to tail, Miragaia stands out within its family for its proportionately long neck. Its genus name refers to the Portuguese parish in which its fossils were found.
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saritawolff · 6 months
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#Archovember Day 12 - Miragaia longicollum
In the Late Jurassic of Portugal lived a peculiarly long-necked stegosaur, Miragaia longicollum. Miragaia had at least 17 vertebrae in its neck, more than most sauropods! Its fossil was found during the construction of a new road and, unfortunately, the back half of the skeleton was likely destroyed in the process. 13 bony plates and one tail spike were found scattered, so Miragaia’s plate and spike configuration is mostly unknown. Still, its long neck is a distinguishing feature that sets it apart from any other known stegosaur.
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Miragaia was long, graceful, large, but more lightweight than most other stegosaurs, at an estimated 2 metric tons (2.2 short tons). Its long neck could have been a means to browse at levels other herbivores weren’t exploiting, and/or it arose due to sexual selection and was used for display. Like other stegosaurs, it may have also been able to stand on its hind legs to reach even higher levels of browse.
Late Jurassic Portugal in many ways mimicked the Morrison Formation of Wyoming, USA. Miragaia would have lived alongside other stegosaurs like its close relative Dacentrurus. It would have also shared space with the ankylosaur Dracopelta, early ornithopods like Draconyx and Dryosaurus, and sauropods like Lourinhasaurus and Lusotitan. It would have been hunted by the European Allosaur, Allosaurus europaeus, and the European Torvosaur, Torvosaurus gurneyi, as well as other theropods like Lourinhanosaurus.
(I previously made my Dacentrurus purple on a whim, so I just decided to follow that trend with Miragaia here. All my stegosaurs are pink or purple lol)
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fastman27 · 1 year
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Stegosaurus.
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fundinofactoftheday · 2 years
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Dinofact #47
The distinctive array of four spikes on the end of stegosaurines' tails is called a thagomizer.
Source: wikipedia
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hallowraith · 11 months
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Woe, thagomizer be upon ye.
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koi-the-kaprosuchus · 2 years
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This took so long and I’m not even that proud of it aughhh. I love the pose but I hate clothing and I hate shading
But yeah it’s just. A random idea I had. Enemies dancing together is an overdone concept but it’s so fun everytime
Britain on the left is an iguanodon, and France on the right is a dacentrurus
Not meant as ship hence the less-than-pleased facial expressions but I won’t care if it’s tagged as ship.
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Here's a paleo profile of a female Stegosaurus! I tried to make it look like Sophie the Stegosaurus from London's Natural History Museum I also tried to show the idea that some female dinosaurs may have been colorful just like males.
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shattersaurus · 12 days
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Wuerhosaurus
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reginaldubel · 5 months
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dinovember day 15: kentrosaurus 🍞
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d-tronaustin · 1 year
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I really wanted to be a paleontologist as a kid but everybody kept telling me they didn't make any money. Then I thought it's really fun drawing dinosaurs, I'll just be an artist. Like a real dummy. Hit up my patreon to get the last slot for sketch rewards like this!
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dry-gold · 3 months
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Links and propaganda. Garbina, a cretaceous footprint taxa of a stegosaurid that was a facultative biped
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Genyornis, a cenozoic dromornithid bird
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Griphognathus, a devonian lungfish
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Gyracanthides, a devonian acanthodian shark
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a-dinosaur-a-day · 1 year
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unexpecteddinolesson · 11 months
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Kentrosaurus
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Kentrosaurus is a genus of stegosaurid dinosaur from the Late Jurassic of Tanzania. Small for a stegosaur, adults measured around 4 m in length and weighed 700–1,600 kg. It had a small, elongated head with a beak used to bite off plant material that would be digested in a large gut. Kentrosaurus had a double row of small plates running down its neck and back, which merged into spikes on the hip and tail. The longest spikes were on the tail end and were used to actively defend the animal. There was also a long spike on each shoulder. The thigh bones come in two different types, suggesting that one sex was larger and more stout than the other.
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Monday Musings: What caused the end of the Jurassic Period?
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That's a tough question to answer. Scientists has a few hypotheses:
1.) Major Marine Regression
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The is evidence in Europe of a major sea level drop which would have caused localized extinctions. I mean, look how low sea level dropped within 25 million years!
2.) Volcanism
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The Tithonian stage of the Late Jurassic saw the creation of a large volcanic plateau in the north Pacific and numerous volcanic deposits where Gondwana was beginning to separate. None of these explain the Laurasian extinctions though.
3.) Asteroid Impact
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There were three minor asteroid impacts during the Late Jurassic; one in South Africa, one in Australia, and one in Norway. None were large enough to have a global impact.
5.) Sampling Bias
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We simply might just be missing part of the picture. In western North America, we are actually missing a chunk of time in our rocks between the end of the Jurassic and the beginning of the Cretaceous. We also see many Jurassic lagerstätten worldwide and a definite lack of such in the early Cretaceous. There also appear to be decreases in sauropod diversity, megalosaurids, and stegosaurids as well as complete extinction of non-pterodactyloid pterosaurs. This could be because they real were going extinct or because they moved to enviorments that don't preserve fossils. We may never know.
6.) There wasn't a mass extinction, just a faunal turnover. This something we can see in the Cedar Mountain Formation. Perhaps there was another one from Jurassic to Cretaceous, we just haven't found it yet.
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As of right now, the boundary between the Jurassic and Cretaceous is formally undefined due to the presence of more endemic flora and fauna than cosmopolitan (more species specific to one area than global distribution). What is agreed upon was that the Jurassic ended in a cooling period that continued into the early Cretaceous. Maybe one day we will have more answers but for now it remains a mystery.
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