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Ostafrikasaurus

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The newest member of the Spinosauridae is one their oldest.

We have just one isolated tooth from the Tendaguru, but this tooth tells us that it was a very primitive member of the clade. It's thicker and have larger denticles than the the teeth of Barynoyx (his next relative) so I decided to give him a look somewhere between Megalosaurus and Baryonyx.

This drawing is highly speculative so better don't use it as reference.
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© 2012 - 2020 Hyrotrioskjan
Comments90
anonymous's avatar
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jason123za's avatar
jason123zaHobbyist General Artist
What a strangely compelling creature, my goodness! And don't worry dude, speculation is all we've got most of the time because they're all a complete mystery :nod:
HUBLERDON's avatar
HUBLERDONHobbyist General Artist
Fascinating!
Hyrotrioskjan's avatar
HyrotrioskjanProfessional General Artist
=)
SketchySaurian's avatar
So it's certain spinosaurs evolved from megalosaurs?
Hyrotrioskjan's avatar
HyrotrioskjanProfessional General Artist
Or at least megalosaur like theropods, yes =)
Trendorman's avatar
TrendormanStudent Traditional Artist
Looks like that mutant Komodo dragon from Godzilla animated series
Hyrotrioskjan's avatar
HyrotrioskjanProfessional General Artist
^^
Adenine91's avatar
I have never heard of this dinosaur. I like it though. 
Hyrotrioskjan's avatar
HyrotrioskjanProfessional General Artist
It's only known by an tooth =)
Adenine91's avatar
It's amazing how the paleontologist who discovered this dinosaur could distinguish it from other members of it's genus by a simple tooth.  
amorousdino's avatar
amorousdinoStudent General Artist
Love the tail!
Hyrotrioskjan's avatar
HyrotrioskjanProfessional General Artist
Thanks =D
Caprisaurus's avatar
No way! This guy really is real! The guy on YouTube was right!
Hyrotrioskjan's avatar
HyrotrioskjanProfessional General Artist
Do you mean me or the Ostarfikasaurus...?
Caprisaurus's avatar
It was a guy on YouTube called henetsygik or something like that.
titanlizard's avatar
Its COOL!!! Looks like Dinocroc on syfy XD
But I think the megalosaur like primitive spinosaur is very realistic.
Hyrotrioskjan's avatar
HyrotrioskjanProfessional General Artist
Thank you :bow:
Pterosaur-Freak's avatar
It's an amazing drawing, and the perspective is amazing. However, I have found one fault, but it's not even a real fault. You've put feathers on a fully mature Baryonyx, so wouldn't a more primitive member of the group also have feathers? It just doesn't make sense to leave them off when you've given them to a derived spinosaurid.
Hyrotrioskjan's avatar
HyrotrioskjanProfessional General Artist
There are two reasons for that difference =)
1. I think that every spinosaur had proto-feathers in it's youth, but that doesn't mean that every species have feathers as an adult.
2. Baryonyx lived in the north, maybe even in a moderate climate zone where it was a bit colder during the winter.
lollipop3455555555's avatar
It is an awesome work, very beautiful, but for feathers... why would a Velociraptor have feathers in Mongolia?
Hyrotrioskjan's avatar
HyrotrioskjanProfessional General Artist
Desert birds have also feathers =)
Feathers are not only for warming but also for cooling (because of multiple reasons)
In addition dromaeosaurs like Velociraptor used their long tail- and armfeathers as display structures and to improve their running style, how some ground birds do it today
Pterosaur-Freak's avatar
Good points. Very well, I concede your point. Awesome picture.
Hyrotrioskjan's avatar
HyrotrioskjanProfessional General Artist
Thanks :bow:
anonymous's avatar
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