Amphidonte ? (Upper Cretaceous ostroid)

[Quer]

Hi,

 

Recently I found this quite complete (both valves) oyster shell in an Upper Campanian to Lower Maastrichtian strata in SE of Pyrenees.

 

My guess is Amphidonte pyrenaicum, a widespread species in the Tethys at this epoch.

 

Supposing my guess is correct, problem is that I find that species named as (from older to newer papers): Exogyra pyrenaica, Ceratostreon pyrenaicum, Amphidonte pyrenaicum, Amphidonte (Amphidonte) pyrenaicum, and Amphidonte (Amphidonte) pyrenaica.  So, I understand that former Exogyra genus has been splitted,

 

Anyone knows of a paper about this issue?

 

Thanks