GuidesMagazineShopBuy FossilsJoin Hunts
JonathanT
Further to my previous post..

My daughter just realised that this rock I dug out is absolutely full of fossils!

I dont know whether to break the rock apart and retrieve them or leave it as is (it was going to go in the bottom of the pond I'm building! Click image for larger version - Name: 20200408_134628.jpg, Views: 66, Size: 699.17 KB Click image for larger version - Name: 20200408_134634.jpg, Views: 72, Size: 572.43 KB Click image for larger version - Name: 20200408_134639.jpg, Views: 71, Size: 651.31 KB Click image for larger version - Name: 20200408_134645.jpg, Views: 71, Size: 417.16 KB Click image for larger version - Name: 20200408_134653.jpg, Views: 66, Size: 514.44 KB
Quote 0 0
Barrow Museum
This looks like a large chunk of Lower Jurassic rock, deposited in the Jurassic sea almost 200 million years ago.  From the fossils it contains I suspect it is actually a piece of the Blue Lias Formation, heavily iron-stained.  Depending exactly where in Leicestershire you are digging, it could well be the local bedrock.  The fossil content appears to be mainly Gryphaea (an oyster shell) as well as the small clam shell your daughter found.  I'd be inclined to keep it intact as you would likely break most of what is in the rock with little to show for your hammering.  Leave it in the rain and in time, it will become a really attractive fossiliferous limestone exhibit alongside your pond.
Quote 1 0
JonathanT
Ok thank you. It came out of a the bottom of a hole apx 2.5 to 3m deep! It was dug out in Kibworth. Would it be ok in the actual pond or would it dissolve?
Quote 0 0
Barrow Museum
It won't dissolve in the pond (unless you fill it with acid!).  But under water it would soon be silted up or covered with algae and the attractive features lost to sight.  Kibworth is underlain by Lower Lias, so your rock could easily be more or less in situ.
Quote 0 0
Write a reply...


Discussions on fossils, fossil hunting, rocks, locations, and identifying your finds.
(C)opyright 2019 - UKGE Ltd and UK Fossils - Contact us