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anastasis008

So after following nizaar ibrahim's study in 2014 I learned that spinosaurus walked on four legs and it spend a lot of time in water being a good swimmer. But recently I saw that some new studies have been published and then some others and I have lost track so if someone could please inform me about the latest discoveries and tell me if spinosaurus was a good swimmer and if he walked on four it would be much appreciated.

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Troodon

The original article by Arden et al supported the aquatic adapation of spinosaurus.  However just published comments by Holtz and Hone point to insufficient data to make that claim    "Some Spinosaurs may have spent extensive time in water, but the data to support this is currently insufficient and other hypotheses for their behaviour also fit the available data."

 

They are the experts and their comments should indicate there are more unknowns than knowns when it comes to the Kem Kem, nothing new.

 

http://www.thefossilforum.com/index.php?/topic/86557-aquatic-adaptation-of-spinosaurus/&tab=comments#comment-1057720

 

https://www.nationalgeographic.com/science/2018/08/news-spinosaurus-dinosaurs-buoyancy-swimming-fossils/

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Randyw

Also see the topic “ was spinosaurus a crocodile.” From a few days ago. Sorry I don’t know how to link it

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Randyw

Here’s the current comparisons. Bones in red are the bones they actually have found

4E4686CC-729B-4378-959F-B77D5233AC7C.jpeg

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FossilNerd
13 hours ago, Randyw said:

Also see the topic “ was spinosaurus a crocodile.” From a few days ago. Sorry I don’t know how to link it

I think I figured out how to link it...

 

 

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Randyw

Yep that did it!

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LordTrilobite

It's mainly the supposed quadrupedality that has been criticized. It also doesn't take Sigilmassasaurus into account as a separate species. So there are definite problems with the reconstruction. But right now it's still the most recent and likely mostly accurate reconstruction we have. Spinosaurus is still a very enigmatic creature.

That image from Scott Hartman also does not take the angle of the femur into account. He already addressed this.

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anastasis008
On 18/06/2019 at 2:44 AM, Troodon said:

The original article by Arden et al supported the aquatic adapation of spinosaurus.  However just published comments by Holtz and Hone point to insufficient data to make that claim    "Some Spinosaurs may have spent extensive time in water, but the data to support this is currently insufficient and other hypotheses for their behaviour also fit the available data."

 

They are the experts and their comments should indicate there are more unknowns than knowns when it comes to the Kem Kem, nothing new.

 

http://www.thefossilforum.com/index.php?/topic/86557-aquatic-adaptation-of-spinosaurus/&tab=comments#comment-1057720

 

https://www.nationalgeographic.com/science/2018/08/news-spinosaurus-dinosaurs-buoyancy-swimming-fossils/

Well its sad to not know much about it anyway i have hope in the future we will discover more.

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