Fossil bivalves on opposite sides. Of the planet

[mr fossil]

Hello

i found these two fossil bivalves on opposite sides of the globe 

the one on the left was found in Montreal Canada and dates back to the late Jurrasic  to early Cretaceous and the one on the right was found in the deserts of Riyadh Saudi Arabia and date back yo mid late jurrasic 

this is really incredible seeing how this species lived all over the earth 

just wanted to share this 

please share your thoughts 

thanks!!

[Jasperfossils]

Hello,

 

The earth looked different back then. Those places were not as far away as the are now. 

[ChristineR]

Still a long distance, but easier to imagine the distribution. I am sure others can discuss other factors involved. All the factors which occurred to preserve the two specimens so far from each other are truly mind boggling. 

[Wrangellian]

Is there any Jurassic rock in the Montreal area? I would have assumed that one was Paleozoic and the similarity was coincidental.

[jpc]

3 hours ago, Wrangellian said:

Is there any Jurassic rock in the Montreal area? I would have assumed that one was Paleozoic and the similarity was coincidental.

I think Wrangellian is right.  Montreal is all Paleozoic, all far as I know.  Convergent evolution.  

[mr fossil]

On 10/1/2021 at 3:57 AM, jpc said:

I think Wrangellian is right.  Montreal is all Paleozoic, all far as I know.  Convergent evolution.  

Interesting 

what system do you think?