Bone from upper jurassic

[Carbon]

Hi,

I've found this bone in France kimmeridge clay.

It's marine deposit so the majority of vertebrates are marine reptiles like pliosaur, plesiosaur, crocodile, ichthyosaur etc.. 

I have some ideas about the determination of this bone but I do not prefer to influence you.

Many thanks for your help.

Regards

Carbon.

Edited September 5, 2019 by Carbon

[Mike from North Queensland]

Pliosaur humerus of femur 

[DE&i]

Looks like a stapes bone. 

[Carbon]

Thank you for your answers.

Isn't it too big for a stapes bone? Compared to the size I look on pliosaurs skull but for the moment I haven't found any publications with stapes bone representation... Any idea?

 

 

 

 

[RuMert]

Looks like ischium, scapula or stapes bone. Maybe a plesiosaur ischium? Ichthyosaur also possible - the osteology can be checked here.

PS. Largest possible pliosaur skull is about 3m long, plesiosaur much smaller. Ichthyosaurs could be anything from very small to gigantic.