#sigilmassasaurus
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alex-fictus.bsky.social
Spinosaurs! I have plenty more but these are all either their own species or they’re just all Spinosaurus aegypticus lol

Spinosaurus🩵, Sigilmassasaurus🪻, Oxalaia🔮, Siamosaurus🖤

#paleontology #dinosaur
November 16, 2024 at 3:43 AM
mrspringjunkie.bsky.social
Sigilmassasaurus Brevicollis/Spinosaurus Maroccanus?
March 7, 2026 at 1:55 AM
jaimeheaddenart.bsky.social
No one single articulated series of a complete neck is described for any spinosaurine theropod dinosaur. The closest being a partial neck for Sigilmassasaurus. This differs from other spinosaurine necks by extremely short or absent neural spines in the rear.
#sciart #paleoart #spinosaurs
Skeletal reconstruction of Sigilmassasaurus brevicollis, one of three named spinosaurids from the Kem Kem of Morocco. Shown are an articulated series of cervical and anterior dorsal vertebrae, omitting posterior dorsal and caudal vertebrae, of a slender-necked spinosaurine. A life reconstruction follows, styled after a loon. Both are shown in profile (lateral view) in a classing walking posture (both hind feet on the ground for a biped).
November 25, 2024 at 4:37 AM
aberrantologist.bsky.social
Doodles from today's flocking #paleostream featuring Maiasaura, Sigilmassasaurus, Boreaspis, and Gigantopithecus.
May 11, 2024 at 4:07 AM
skyemcdavid.com
Nicorhynchus fluviferox?
Or Sigilmassasaurus 😈
November 6, 2025 at 12:42 PM
bvacpaleoart.bsky.social
Sigilmassasaurus (Spinosaurus?) WIP!! Follow the thread!

Sigilmassasaurus (Spinosaurus?) em Progresso!! Siga o fio!!

#Spinosauridae
Spinosaurid looking at your soul
April 5, 2026 at 11:26 PM
frandrawer.bsky.social
¿Spinosaurus? ¿oxalaia? ¿sigilmassasaurus?

No bro, nosotros tenemos al riojavenatrix. Eso sí que es un nombre durísimo de cojones
July 3, 2025 at 8:49 AM
ka2cancer.bsky.social
#dinosaur
sigilmassasaurus oxalaia
December 13, 2024 at 1:54 PM
ppaleoartist.bsky.social
here are today's #Paleostream sketches!!!

today we drew Maiasaura, Sigilmassasaurus, Boreaspis, and Gigantopithecus
a baby Maiasaura stands in a grey void, red abstract patterns can be seen behind it on the edge of a large body of water, a Sigilmassasaurus has caught a baby Onchopristis and tosses it into the air to readjust its grip. mountains and trees can be seen in the background it's night time, a Boreaspis is illuminated by an artificial light at the sea floor a female Gigantopithecus is about to take a bite of a bamboo log
May 11, 2024 at 5:14 AM
cobalttherighteous.bsky.social
CW: Soft Vore/Endosoma

Voretober '25, prompt 15, 'Smuggled', features Talia smuggling Johnathon into the Ranch! Cheeky spinosaur!

Prey is @johnathondh.bsky.social !

#vore #safevore #endo #endosoma
Vore drawing: Talia the Sigilmassasaurus is walking through the open gate into the Ranch from an area with buildings (mostly outside of view). She's giggling, and her stomach is rounder than usual Vore drawing with internal: Talia the Sigilmassasaurus is walking through the open gate into the Ranch from an area with buildings (mostly outside of view). She's giggling, and her stomach is rounder than usual. The internal cutaway shows Johnathon the human tucked inside, blushing and enjoying the experience.
July 11, 2026 at 4:20 AM
cobalttherighteous.bsky.social
CW: Soft Vore/Endosoma

A new drawing because FA is down, based off of an RP with a friend!

Dunstan the Tarbosaurus swallowed a new keeper-friend, shy with this, while Talia the Sigilmassasaurus, his soulmate, decided to tease the two of them, lovingly doting on her 'king'.

#vore #endosoma
Soft vore, Dunstan the Tarbosaurus, having swallowed a friend, is being leaned up against by Talia the Sigilmassasaurus, the spinosaur cozying up to the big dinosaur and petting his tummy. Both dinosaurs are blushing!
May 3, 2025 at 6:25 PM
sinequalis.bsky.social
#paleoart #sciart

Bahariasaurus ingens and Sigilmassasaurus brevicollis

Color pattern is homage to Nitocris from FGO and Godzilla from Godzilla -1.0
July 12, 2026 at 5:49 AM
mesozoic.bsky.social
A pair of associated and pathological dinosaur teeth of an indeterminate spinosaurid, either cf. Spinosaurus sp. or Sigilmassasaurus brevicollis from the Kem Kem Group in Taouz, Morocco. #FossilFriday

#dinosaur #fossil #paleontology #spinosaurus #sigilmassasaurus #spinosaurid #theropod
Two fossilized dinosaur tooth of either Spinosaurus or Sigilmassasaurus with the root still preserved showing a protrusion or bump in the enamel towards the center of each crown.
July 12, 2024 at 11:13 AM
skyemcdavid.com
No I think if anything it's Sigilmassasaurus eating the pterosaurs www.nature.com/articles/430...
Pterosaurs as part of a spinosaur diet - Nature
A rare fossilized action snapshot captures a mortal tussle with a hungry predator.
www.nature.com
November 6, 2025 at 2:57 PM
fanthing00003.bsky.social
Nat's baby sigilmassasaurus friends
March 13, 2025 at 3:55 AM
jaimeheaddenart.bsky.social
Sigilmassasaurus is considered by some to be a synonym of Spinosaurus aegyptiacus, an animal known from a more complete skeleton 3k miles away. It was subsumed with another Moroccan species, "Spinosaurus" maroccanus, on account of similarities in the cervicals which differ from aegyptiacus.
November 25, 2024 at 4:40 AM
mesozoic.bsky.social
Piscivorous hummingbird? That'd be kinda neat, but also dreadful and upsetting if you just stuck these on a normal hummingbird beak.
Fossilized dinosaur tooth of a Spinosaurus or Sigilmassasaurus.
September 6, 2023 at 6:30 PM
lordtrilobite.bsky.social
Very nice. But it's worth pointing out that the holotype for Sigilmassasaurus brevicollis is only a single isolated cervical vertebra. All the other referred vertebrae are also all isolated remains. The neck of Sigilmassasaurus is a composite. Though I'd agree that more likely to be valid.
November 25, 2024 at 12:54 PM
eriorguez.bsky.social
So, seeing it doesn't get a single mention in Sereno et al. 2026, how plausible may it be that Spinosaurus mirabilis ends up as a junior synonym of Sigilmassasaurus brevicolis?
February 22, 2026 at 9:53 PM
paleogeek.bsky.social
Hi peeps! I'm Alex, a Venezuelan 3D animator and digital illustrator doing a range of things from palaeoart to creature and character design. 🦕🐉✨
Size chart of various brightly coloured and complexly patterned spinosaurids on a white and gray gradient background. Includes: 1. Spinosaurus aegyptiacus 2. Oxalaia quilombensis 3. Iberospinus natarioi 4. Sigilmassasaurus brevicollis 5. Vallibonavenatrix cani 6. Ichthyovenator laosensis 7. Baryonyx walkeri 8. Cristatusaurus lapparenti 9. Irritator challengeri 10. Suchomimus tenerensis 11. Siamosaurus suteethorni 12. Ceratosuchops inferodios 13. Riparovenator milnerae Ernst Stromer for scale Digital painting of four brown Spinosaurus with yellow markings swimming across a swamp river from an aerial perspective. They are in a bright clearing surrounded by mangrove trees. Digitally sketched bust of a tyrannosaur with crocodile-like teeth, quills, yellow eyes, and osteoderms lining its neck and back. The dinosaur is in bluish tones, and the background is a bright reddish pink. Stylised digital drawing of an anthropomorphic Spinosaurus girl brushing her hair. She has light tan/beige skin, brown stripes, green eyes, and dark blue hair. She is wearing a striped green sweater and trans flag-coloured pants. Her hairclip is a green Onchopristis. The background is yellow.
September 20, 2023 at 9:41 PM
kiteis.bsky.social
>　第二次世界大戦が勃発すると、シュトローマ―は一連の標本の疎開をバイエルン国立古生物学地質学博物館（BSP）へ訴えた。が、熱心なナチス党員だったという館長はこうした行為が「反ナチス的」であるとしてとうとう首を縦に振らなかった（シュトローマ―は公然とナチス体制を批判していたともいう）。運命の1944年4月24日夜、ミュンヘン空襲のさなかにランカスターとモスキートの流れ弾が博物館を直撃し、そして一連のバハリヤ層産化石はひとつ残らず失われたのだった。 https://getawaytrike.hatenablog.com/entry/36950355
蜃気楼の尽きる場所 （恐竜博2016予習/復習記事） - GET AWAY TRIKE !
↑Skeletal reconstruction of Cenomanian North African spinosaurids. Top to bottom, composite skeletal reconstruction of Sigilmassasaurus sp. (top right), composite Spinosaurus aegyptiacus (top left), Spinosaurus cf. aegyptiacus (MSNM V4047), Spinosaurus aegyptiacus (holotype; BSP 1912 VIII 19), and S…
getawaytrike.hatenablog.com
March 28, 2026 at 6:49 AM
mrceratobr.bsky.social
Rexy (Crichton's book) vs Sigilmassasaurus
August 1, 2026 at 1:25 AM
bvacpaleoart.bsky.social
O Sigilmassasaurus é um Táxon controverso; se era ou não um Espinossauro, ainda está sob discussão, eu acho 🤔

Sigilmassasaurus is a controversial Táxon, if it was a Spinosaurus or not, it's still under discussion I think 🤔
April 5, 2026 at 11:32 PM
fearlessdasp.bsky.social
Sigilmassasaurus brevicollis
March 19, 2026 at 11:38 PM
edelemental.bsky.social
Sigilmassasaurus is here at last!
A potentially dubious Spinosaur from the Kem Kem formation, this little dude is quite interesting. At the very least it wouldn't be the first time multiple Spinosaurs roamed the same place if it is well and truly valid.
September 11, 2024 at 7:01 AM