Contact Prof.D.K.Pandey Dhirendra Kumar Pandey and Prof.Fuersich Franz T. Fürsich and Mathias Alberti Matthias Alberti

I would bet that it is a Peltoceras or a genus very close but I am not an expert of Oxfordian ammonites... There are quite a lot of species but traits like the ribs quite strong and no bifurcations may help you find a species attribution.

All the best, Jérémie

I saw very similar forms in Oxfordian paper of central Mexico. But is difficult more over that I do not work Oxfordian. But tray to have a llok i mexican papers.

Thanks Muthuvairavasamy Ramkumar, Jérémie Bardin and Raúl Carrasco Ramirez for your responses. I've made some research by myself following Jérémie Bardin suggestions and I've found that It could probably correspond to the genus Gregoryceras.

I whish you the best.

Thank you so much Luc Bulot

I am not an expert of Oxfordian ammonites, but according to the subcircular section in the very internal towers, and subrectangular elevation , I guess it belongs to Peltoceratoides, probably it's

( Gregoryceras pervinquieri (Spath,1913) )

Good luck

The specimens do not show the suture lines which are the best guide (fingerprint) to identification. It will be difficult to identify accurately without them. May be look for better preserved pieces.

Obianuju P. Umeji

I am absolutely agree with Luc Bulot: this specimen is a Gregoryceras, very probably related to the upper middle/lower upper Oxfordian species of the G. fouquei/pervinquieri group. Impossible to be more precise because of the preservation state of the specimen.

Gregoryceras!