The concentration of fossils is quite incredible, and all a decent size too!
Having worked as an archaeologist it is quite interesting to see that the method of recording distribution of finds is practically the same. We used to lay out a large grid frame on top of a section of a trench and used a plumb-bob to record depth of the objects one would record. This was, of course, in order to plot features and finds so that they could be tied into the overall site plan. I suppose the only real difference with palaeontological plotting is that it is primarily finds orientated whereas with archaeology everything has to recorded from soil horizons to cuts, pits, features, structures and, of course, finds.
I used to love doing that; it really brought out the old artistic skills!
That ceriatite clearly demonstrates how simple the sutures were in these early ammonoids. The later ammonites had much more complex sutures; this 'fingerprint' is unique to each individual ammonite species. I wonder if ceriatites demonstrate a similar diversity? (They must be harder to identify on a species level as the suture is so simple, methinks).
Do you publish your excavation reports, Kevin? (By the way, your web-site is great!)