Dolorthoceras species ID confirmation request

[Ruger9a]

Good morning folks.  I have a Dolorthocera pseudorthocerid, nautiloid cephalopod.  It's Carboniferous period from Serpuhovian Stage, Brontsy quarry, Kaluga region of Russia.  Can anyone confirm the ID or provide a link where I can perform some additional research?  Thanks in advance.

[Tidgy's Dad]

I have seen these advertised for sale and do seem to be Dolorthoceras, but no species listed, just Dolorthoceras sp. 

Nice specimen. 

[Ruger9a]

Thanks Tidgy's Dad.  That's all I can seem to find on it as well, just Dolorthocera species and not much else.  I'm still hoping someone in our group will have additional information.

[RuMert]

There's indeed a quarry at that location with that type of fossils. But they are scarce and usually in bad condition. This is the best photo from an actual collector I could find. Orthoceras (Dolorthoceras) sp., bar = 10 mm

1968 publication

[Ruger9a]

Thanks RuMert.  It was listed as very rare when I came across it.  I was impressed with the completeness, detail and beauty, so I couldn't resist it.  Although...…...I've had a VERY hard time finding anything on it.  Your link the "best photo" helps me confirm it is a very nice specimen.  Thanks for including the "1968 publication" but alas it's in Russian, so I can't read it - Argh!!  Thanks again.

[RuMert]

You're welcome:) You can with https://translate.google.com, but it's an overview not devoted to that specific location

[Ruger9a]

Wow!!!  I didn't know you could translate a complete document in "google translate" until today...  Thanks.  Well, I tried and it does nothing, so I'm back to square one.  But, at least I have a confirmation which is really important to me.  Thanks again.