Hi. I found this today at Ravenscar. It weighs a ton and appears to have quite a bit of pyryte. Looks like a Nautilus or very large ammonite from one direction. also appears to have an outer shell which has partly dissapeared exposing the inner structure.
I think you are right or close with Nautilus (going on the overall shape and the simple septae).
Some other Yorkshire Nautilus for comparison
But that finely ridged area... It makes me think aptychus, but Nautiloids don't have a hard aptychus (they have a leathery hood). And since it seems to be within the overall layering, I presume it may be an internal layer that happens to have that structure (I have never seen it before).
If Tabfish is looking-in, maybe he can help...
PS. Please could you downsize your images: 6Mb is slowish to download for a lot of folks. There are several free utilities to reduce the file size of an image, and they can do so while retaining plenty of detail. Certainly for initial postings, a 1920x1080px image can be reduced to less than 1Mb while still being perfectly acceptable. Thanks.
It is a Nautilus and by the look of it a very big one! well done on finding it.
I have a couple from the Holderness that I will post some images of if thats ok.
Hi. Thanks for the reply.
I bent down as i spotted a small ammonite and as i looked to the right i noticed the back of this thing. When i turned it over i was stunned.
I quite like it as it is although i may see if i can remove a bit more of the matrix. I have prepped and cleaned a few small fossils in the past however i do not have the tools needed. Looking at this thing its also difficult to work out what to keep and what to remove.
I could look into taking it to someone as there are a fair few people who do it up here. (Scarborough/Whitby area)
And yes i will keep collecting. I am looking for a change of career so maybe this is the future. I have mainly been collecting shales with golden ammonite imprints so far.