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NTamura's avatar


Eustreptospondylus oxoniensis, this one was shown to be a possible ancestor of the Spinosaurids...

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josiah2007's avatar
glad I'm not the only one who saw this in the bones

working on a skeletal image similar
AntonellisofbBender's avatar
how did you make this?
MAD-KNIGHT's avatar
How tall would Eustreptospondylus be max? Could it reach 2m tall?
NTamura's avatar
Estimate length is 4.5 m but then the only known skeleton is from a juvenile so a full adult may possibly have reached a height a 2 m at shoulder level.
MAD-KNIGHT's avatar
Thanks. Did Eustreptospondylus have little crests like Allosaurus? I have seen artworks where the crest is more evident, while others were not. 
NTamura's avatar
Can't really tell. The known skull is missing the relevant bones:…
MAD-KNIGHT's avatar
What is the current accepted skull shape for Cryolophosaurus? Originally it was portrayed with a broad snout, now there are some depictions of it with a narrower snout. 
NTamura's avatar
Here is a reconstruction of the skeleton by Mike Hanson:…
The white part is actually what is known. The grey parts are inferred. Cryolophosaurus was a primitive tetanuran and would have had a more elongated skull than say Allosaurus.
Skull-Island-Master's avatar
Nice !! And very intresting about the head shape, this will forever change my imagination of this creature, it looks awsome.
NTamura's avatar
RickCharlesOfficial's avatar
Very interesting reconstruction of the skull. Is such a reconstruction something to be taken with a grain of salt or is their more to be said about this hypothesis that Eustreptospondylus is a direct ancestor to spinosaurs?
NTamura's avatar
Palaeos is back. here it is : [link]
NTamura's avatar
This comes from this study: [link]
The skull is based on the reconstruction that came with the study (it was on the site but it is apparently down)
RickRaptor105's avatar
What about the partial skeleton in the Oxford Museum of Natural History?
The skull doesn´t look as elongated as in your reconstruction.
NTamura's avatar
See comment above to :icondeinonychusempire:
PeteriDish's avatar
You really learn a new thing every day! =) I must say, this reconstruction nicely portray this hypothesis - the hints in the jaw morphology especially. ;)
Great work once again! =)
PeteriDish's avatar
You're welcome! I have once read that dilophosaurus was related to a spinosaurid ancestor... This only shows that new data changes everything =D
HellraptorStudios's avatar
very nice work indeed, earlier tought to be a megalosaurid.
RajaHarimau98's avatar
I can see the spinosaur characteristics. I thought at first it was a coelophysoid or spinosaur looking at the thumbnail, lol. Great job! :)
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