Approved by Mark Witton !
The Review :
This very well made book has Truly Epic ( Absolutely Amazing, peak and quite well~drawn ) Paleo-Illustrations, Many Clear and Open Explanations; as well as Several accurate paragraphs....
For example : They even Include The Scimatar Spinosaur from Niger and New Southeast Asian Spinosaurs !
Clear Explanations about it is open incapability of diving and swimming
Spinosaur Fighting !
If same species Scimatar might Represent The Male / s of The Soinosaurus ?
^^^^^^^
I love this artwork. Depicts Spinosaur generalist behavior and direct evidence of sauropod consumption.
Two young ( adorable ) spinosaurids mercilessly Hunt a juvenile Phuwiangosaurus in Cretaceous Thailand. A Large adult spinosaurid ( not the newly unveiled Sam Ran spinosaurid ) rests in the background beside a body of water, while two feathered Kinnareemimus are depicted by the trees on the right. ( Image credit: Kmonvich Lawan )
Around 125 million years ago, a dinosaur longer than a pickup truck stalked rivers in what is now Thailand. The remains of the roughly 25-28 foot-long ( 7 to 10 meters ) dinosaur, which include parts of its spine, pelvis and tail, represent one of the most complete spinosaurid specimens ever found in Asia, according to researchers.
Amazon Boxing Day Deals: check out what's on offer now! Spinosaurids were a family of bipedal predators with elongated snouts, crocodile-like teeth and, in many species, sails on their backs. Researchers believe that the Thai specimen, first discovered in 2004, belonged to the Spinosaurinae subfamily, which included the longest-known carnivorous dinosaur genus.
◊ | The team suspects that The Sam Ran spinosaurid was more closely related to Spinosaurus from North Africa than Ichthyovenator from Laos. However, there's a lot of uncertainty surrounding the evolution of Asian spinosaurids, as well as spinosaurids in general, and the researchers' findings are only preliminary at this stage.
The Sam Ran spinosaurid died beside a shallow river before some of its remains were fossilized. Samathi doesn't think that this spinosaurid could swim, but it seemed to be using the river ecosystem, which was teeming with life when the dinosaur perished relatively early in the Cretaceous period ( 145 million to 66 million years ago ).
'''' The new spinosaur lived (or at least [was] found) in a river system with gently flowing water and occasional floods, within a dry to semi-arid landscape '''' : Samathi has said...
'''' The site has yielded a variety of animals, including freshwater sharks, bony fish, turtles, crocodiles, and dinosaurs such as a sauropod and an iguanodontian... ''''
Stats:
Spinocetus Similisphocae
Genus Translation: spined whale
Species translation: Seal-like
Range: start of the late Cretaceous
Family: Spinosauridae
Subfamily: spinocetidae
Spinocetus is a genus of basal Spinocetid from the late Cretaceous period. This animal is the direct ansestor to all Spinocetids. The Spinocetus lives in an alternate timeline if Spinosaurus
(or sigilmassasaurus if it's valid) was able to evolve into a fully Semi-aqautic animal, the Spinocetus would of spent the majority of its life in fresh water rivers and streams, using it's webbed feet and hands to swim. The Spinocetus is a transitional species of sorts, later and more derived Spinocetids would of have fins and would of able to live in salt water environments. Although that wouldn't happen until after the K-PG mass extinction. Spinocetus would only go on land to lay eggs and to breed in the shallow waters but after being more of an aquatic lifestyle, the Spinocetids would of evolved live birth.
(Art made by me)
Owner's Quote : ''' Femur : Spinosaurus 棘龍 股骨 Should I target a complete leg next ? It’s the largest single bone in my collection 🦕🦖 70cm and 18kg🔥
I can’t believe to own a bone of this size and quality '''
[ ◊ ] For more information :: Given The size compared to Fsac-kk-11888 ( 12 meters | 61 cm ) specimen and its greater robusticity ; this truly indicates the bone quite likely came from an adult individual 13 - 14 meters in length. ( 70cm )
Unfortunately, just like the “Goliath” T.rex specimen, it too is in a collection. Because of this, it can never be reliably described...
We can cry and be depressed right now.
First we lost Spinosaurus eating and consuming a Carcharodontosaurid vertebrae to the private hands. Now we lost A giant / very large specimen; just like how we lost ' Goliath ' Rex. Times are rough for free Paleontology. At the very least we have pictures freely available.
He Also owns a Spinosaurus : Fingers -- Arm | claw specimen as well !
Of course this specimen is likely a subadult / not fully matured
https://www.instagram.com/p/DEPRJOAp366/?img_index=1
38 Votes in Poll
Welcome Zavacephale rinpoche ("Zava" means root/origin in Tibetan) from the Early Cretaceous Khuren Dukh Formation of Mongolia!
Gone are the days of Yaverlandia and Stenopelix, as we finally have a definitive Early Cretaceous pachycephalosaurian! The discovery of Z. rinpoche pushes back the origin of pachycephalosauria by around 14 & 16 million years, before the previous record-holders Sinocephale and Acrotholus respectively. The holotype is pretty much the smallest pachycephalosaur we've found, although it could just be because of the specimen's immaturity. Still, it seems pachycephalosaurs had well-developed dome structures on their heads as far back as the Aptian.
https://doi.org/10.1038%2Fs41586-025-09213-6
On the other hand, we have some more Iberian spinosaur news! In a recent paper on Camarillasaurus, Rauhut and colleagues found the material of Protathlitis (the fella described just over a year ago) had insufficient diagnostic features to be considered a distinct taxon, and therefore a nomen dubium, and found the remains to be chimaeric as well. In addition, Rauhut found even more support for Camarillasaurus as a spinosaur, and even a spinosaurine, as a sister taxon to Spinosaurus itself!
https://palaeo-electronica.org/content/2025/5627-revision-of-early-cretaceous-theropod-dinosaur
So with recent researches, we all know the T. rex has lips, and apparently I found in most medias and paleoarts this trait apply to other theropods as well. But it confuses me when it comes to Spinosaurids. Even recent documentaries like WWD 2025 and River of Giants potrayed Spinosaurus with no lips, revealing their teeth similar to crocs, while some other depictions I found, mainly paleoarts, potrayed them with lips. So which one is actually true and how about other Spinosaurids? And is there any other exceptions of the "lips" thing in theropods and dinosaurs in general?
27 Votes in Poll
It fren shape
Idk, just a random doodle of a thing
It's been a little bit since I've drawn Ceratosuchops, and so wanted to make it again.
I'm not fully sure what the nasal crest is supposed to look like, so I based it on Suchomimus (they're in the same clade {Ceratosuchopsini}) and exaggerated it a little. Don't think its entirely accurate, but I think it's fine given "horned" is in its name.
The colors are based on a "Mattel spinosaur" I had in a dream a few years ago; I liked the colors, but didn't know the genus it was, so turned it into Ceratosuchops. Used this pattern quite a lot since for this animal.
No color/shading versions
(forgot to get a photo of the outline without scales^)
This time around I decided to use a skull sketch as reference, wanting to make a more accurate design. That was a bit challenging to manage, given the fenestrae were difficult to put in the right spot (used for nostril & eye placement), but I really like the way this turned out.
Just like the other 5 billion Iberian spinosaur taxa, the Zorralbo I baryonychine is extremely fragmentary, but its bones led researchers to determine it as the largest Early Cretaceous carnivore from the Iberian Peninsula.
https://www.sciencedirect.com/science/article/abs/pii/S0195667125000576
I'm not sure of the exact mass and length estimates though.
Suchomimus tenerensis was a large ceratosuchopsid baryonychine from the albian of early Cretaceous Niger. Its known for a long tooth filled snout and robust arms, a very enigmatic trait for a theropod but normal for the spinosaurids. One thing about Suchomimus that's been commonly known is it not being considered a true “megatheropod”. A megatheropod is any theropod dinosaur over 5 tonnes in weight.
That is because of a gracile build, small head, and light bone frame. However in more recent times, Suchomimus is much heavier than previously thought and might be considered a megatheropod after all.
In a 2025 study by Matt Dempsey and his colleagues, the body mass of various dinosaurs was tested and new estimates were established.
The study argues theropods are underestimated in terms of weight due to a lack of soft tissue being taken into account.Acrocanthosauruswas the highlight for most, with it jumping from 5 to 6 tonnes to nearly 8 tonnes.
...but Suchomimus was estimated in the same paper and has increased in size drastically too. According to this new model, Suchomimus now weighs up to 5,260 kilograms (5.3 tonnes).
While some estimates in the past gave Suchomimusa similar body mass, they were ultimately considered overestimates.
Most studies don't consider Suchomimusto weigh over 3.2 tonnes, let alone 5. This is significant as it implies All spinosaurids should likely increase in size as well.
Study:
https://onlinelibrary.wiley.com/doi/10.1111/brv.70026
If you discovered a Dinosaur, a small spinosaurid with large spiky serrated teeth, and a small spine, large brain and long tail, what would you name it?
You can draw it if u want :D
Meet : OPH2318
'' There are numerous isolated spinosaurid materials from throughout the kem kem group in Cenomanian Morocco. Some can not be identified, but others can be referred to Spinosaurus thanks to the relatively complete specimen Fsac-kk-11888... Every once in a while, a specimen comes along that proves to be absolutely Ginormous !
◊ -] One such specimen is: OPH2318, a very large right phalanx. It was described in a 2025 paper by Cau&Paterna et al., along with other large theropod material. The bone is nearly complete, only missing the proximal end. OPH2318 is comparable in width and shaft elongation to adult specimens of Tyrannosaurus, but proportionally much shallower. The general morphology of the pedal phalanx is diagnostic to Spinosaurus and overlaps perfectly with the neotype.
The bone’s sheer dimensions Are apparent with the mediolateral width of the phalanx, indicating OPH2318 is about 145% larger than the values in of the subadult Spinosaurus neotype The study estimates OPH2318 would have come from an individual up to 15 meters long... The specimen seems to be around the same size as the largest specimens of Spinosaurus; Such as: MSNM-V4047, and NHMUK VP R-16421 ''
◊ | ...with a third [ Confirmed ] giant spinosaurid specimen referred to Spinosaurus suggests the genus would have achieved these massive sizes fairly often. Of course, toe phalanx has had a history of overestimates with theropods. However, even with variation taken into account, you're still getting an animal much larger than the 11 meter neotype specimen. OPH2318, while fragmentary, highlights the immense size Spinosaurus could have reached. Even larger specimens should not be off the table !
Sources :
https://x.com/Deform2022/status/1920830311031558305
Officially We have NHMUK-R :
MSNM-V specimen:
MNHN SAM 124: Essentially Another MSNM-V sized - perhaps longer Specimen.
( Not so Officially But : Potentially ) NMC Humerus : 13m Giant w/ Likely more than 10+ tonnes.
...and now this colossus...
Real Spinosaurus 'es could confirmed to be Giants ! Essentially...
VIP Pings: @JustanPaleoartist2 @Eren Freeman @SiatsPyro07 @Crysomega @Yoshua Z.O @Ornithomimus65
22 Votes in Poll
Here is some info. I got from Google.
The 2020 Study:
A study by British paleontologist Symth and colleagues suggested that Sigilmassasaurus is synonymous with Spinosaurus, and that the specimens previously attributed to Sigilmassasaurus should be considered part of the Spinosaurus hypodigm.
Synonymy:
If this is supported by future research, both Sigilmassasaurus and the Brazilian spinosaurine genus Oxalaia would be rendered junior synonyms of Spinosaurus, expanding its range and potentially supporting the theory of faunal interchanges between Africa and South America during the Cretaceous.
Check and comment unmentioned spinosaurids. ( in alphabetical order )
* Angaturama limai
* Baryonyx walkeri
* Camarillasaurus cirugedae
* Ceratosuchops inferodios
* Cristatusaurus lapparenti
* Iberospinus natarioi
* Ichthyovenator laosensis
* Irritator challengeri
* Ostafrikasaurus crassispinosus (highly dubious, uncertain spinosaurid status)
* Oxalaia quilombensis
* Protathlitis cinctorresensis
* Riojavenatrix lacustris
* Riparovenator milnerae
* Siamosaurus suteethorni
* Sigilmassasaurus brevicollis (Controversial, uncertain spinosaurid status)
* Sinopliosaurus fusuiensis (Dubious, uncertain spinosaurid status)
* Spinosaurus aegyptiacus
* Suchomimus tenerensis
* Suchosaurus cultridens
* Vallibonavenatrix cani
* Vectispinus valdensis
9 Votes in Poll
