I found this ammonite on the Jurassic coast a few years ago. It's 11 inches across and took for ever to prep from a solid block of limestone.
The only picture I've been able to find of something similar is of an ammonite at the Cardiff museum which is an apoderocerus leckenbyi. Can anyone out there confirm or otherwise that this is the correct id?
Very nice Gromit, fantastic prep to keep the spines.
Forgot to say that's a 'big un' !
We can very occasionally find one on the Holderness, but with all of the fossils being of an erratic nature only the smaller ones usually survive and not with the spines like yours.
It's something special and one to keep forever, well done.
Thanks for your comments.
As I said it was a nightmare to prep and I would be lying if I said I didn't need to use any super glue
The outer part was well rotted before fossilisation so there would have been another two thirds of a whirl making it around 15 inches across.
Hi, think I have found one of these today also on the Jurrasic coast, around 7" has all the spines around the edge, it isn't prepped atm and still in concretion, I'm finding it hard to get a solid ID on it too. Thanks.
Looks like it to me - Pages 234-5 and Plate 38 of "Fossils of the Lower Lias of the Jurassic Coast" (Pal. Assoc. Lond. 2010)