GuidesMagazineToolsFossilsHunts
Sign up Latest Topics
 
 
 


Reply
  Author   Comment  
RobertM5

Neogene Newbie
Registered:
Posts: 3
Reply with quote  #1 
Just come back from fishing at Llandegvedd Reservoir. I am sure it is mostly Silurian there is a formation of bedding planes in the Strata but found something a bit different there appeared to be Devil's Toe Nails in some and also of some coral Photo's attached. It is the belemnite type nodule I recovered I am uncertain of?? Any ideas?

Attached Images
Click image for larger version - Name: IMG_20181016_145940.jpg, Views: 19, Size: 2.29 MB  Click image for larger version - Name: IMG_20181016_150433.jpg, Views: 21, Size: 2.59 MB  Click image for larger version - Name: IMG_20181016_150015.jpg, Views: 18, Size: 2.57 MB  Click image for larger version - Name: IMG-20181016-WA0001.jpeg, Views: 22, Size: 1.38 MB  Click image for larger version - Name: IMG_20181016_145953.jpg, Views: 17, Size: 3.43 MB 

0
Rob

Avatar / Picture

Cambrian Rockhound
Registered:
Posts: 41
Reply with quote  #2 
fossilized-coral-and-defiantly-an-nodale
0
MicroFossilMan

Cambrian Rockhound
Registered:
Posts: 668
Reply with quote  #3 
That's a rather nice chain coral. Halysites perhaps?

If there were Devil's Toe Nails (Gryphaea sp.) then I suspect they're in rock that was brought in from somewhere else. The bedrock in the area is, as you suspect, Silurian and Gryphaea doesn't go that far back.

__________________
MFM
0
prep01

Avatar / Picture

Cambrian Rockhound
Registered:
Posts: 2,711
Reply with quote  #4 
I agree with MFM on the coral and the nodule looks more Jurassic. No photo of the Gryphaea?
__________________
Colin Huller
0
RobertM5

Neogene Newbie
Registered:
Posts: 3
Reply with quote  #5 
I got the samples while fishing, the summer as it was the fossils have not been exposed for over 40 years.
0
RobertM5

Neogene Newbie
Registered:
Posts: 3
Reply with quote  #6 
Quote:
Originally Posted by prep01
I agree with MFM on the coral and the nodule looks more Jurassic. No photo of the Gryphaea?
I might venture out again tomorrow, see if I can get some photos
0
Dirty Pete

Avatar / Picture

Cambrian Rockhound
Registered:
Posts: 651
Reply with quote  #7 
Hi Robert, I've spent many hours wandering around the Usk inlier without much success. Found a trilobite many years ago but never a Gryphea.
Here's a geology map of the area. The inlier's surrounded by Devonian so definitely no Jurassic.  

USK geolmap.jpg 
Pete.

PS I've found Gryphea stuck in the banks of the Mon-Brec canal around Blorenge which is cut in Devonian rocks. They used impermeable
Lias clays to line the canal. Obviously the Gryphea came along with the clay. Maybe a similar thing at the reservoir. 


0
Previous Topic | Next Topic
Print
Reply

Quick Navigation:

Easily create a Forum Website with Website Toolbox.



Discussions on fossils, fossil hunting, rocks, locations, and identifying your finds.
(C)opyright 2018 - UKGE Ltd and UK Fossils - Contact us