Fossils

I used to work at this hospital and I've been there quite a few times since I retired but I never noticed the flags with all the fossils before. there are hundreds!
Had a bit of a walk this morning and ended up near the hospital so thought I'd grab a geocache that's there but I couldn't find it! Then I noticed some blobs on a paving stone - had a closer look and wow. See extras also (there were many more than I took photos of).
These are now the subject of an earthcache.