It would be interesting to see the dorsal view (brachial view) so that the umbonal region can be observed.  What is the size of the views without scale? From the anterior and lateral views it has a similarity with Carneithyris or Chatwinothyris, but both have very small foramen, which cannot be observed over here.

Check out the genera Sellithyris Middlemiss, 1959 and Loriolithyris Middlemiss, 1968, both widespread terebratulids of the Tethys ocean of the Mid-Cretaceous.

Dear Tayyeb

First of all your prepared figures are not clear for identification but it seems Terbratulids. You should more clear figures .

Regards

M.Afghah 

see link below: 

http://www.thefossilforum.com/uploads/gallery/album_1564/med_gallery_2384_1564_93761.jpg

sch&source=hp&biw=1280&bih=630&q=Sellithyris&oq=Sellithyris&gs_l=img.12..0i24.73318.73318.0.76189.1.1.0.0.0.0.107.107.0j1.1.0....0...1ac.1.64.img..0.1.107.EcmDpc06ToQ#hl=en&tbm=isch&q=Carneithyris&imgrc=9I8zsdGLf1Jo5M%3A

Dear Tayyeb,

Please contact to the following addresses:

Dr. Lucia Angiolini, [email protected]

Dr. Bahrammanesh, [email protected]

These workers have good experience on Iranian brachiopods.

With best wishes,

Habib Alimohammadian.

Please would you be kind enough to present a correct scale and more clear views for your pictures, and of course in addition a classical dorsal view allowing appreciate clearly the shape and size of the foramen. In addition, if the specimens come from Albian -Cenomanian layers the answers evoked above are not correct: Loriolithyris is a genus from Valanginian to the Barremian (according to species) and Carneithyris a genus from the Senonian. It could be interesting to observe several specimens of a same species (don't use juveniles alone!) while brachiopd species present a great variability. Check vol. 5 of the Treatise on Invertebrate Paleontology, PartH: Brachiopoda Revised .

Best Wishes

Try to compare your specimens with Albian terebratulides (chap brachiopodes) from the stratotype area (2010) and with specimens from the vol. IV : brachiopodes du Crétacé, d'Orbigny (1847, 1851), Paléontologie Française. As well, made comparisons with specimens from the Cenomanian in d'Orbigny (1841, 1851), and also with brachs illustrated in the Cenomanian stratotype volume or in Geobios, 2014 - Best wishes