GuidesMagazineShopBuy FossilsJoin Hunts
TqB
I've found a few sponges around here but none quite like this - and there don't appear to be any sponges at all recorded from the area.

Despite having a fair bit of detailed reference material, I'm finding it very difficult to tell one sponge from another - this is possibly Haplistion sp. which is common in Derbyshire Cracoan reefs to the south of here.

It's partially silicified which is the only reason it was visible at all - as the section shows, it's otherwise rather ghostlike.

About 30mm diameter, apparently cylindrical.

Namurian, Great Limestone.

IMG_0625c_-_Copy_2.JPG 

IMG_0625c_-_Copy.JPG 


Section about 1cm behind exposed surface:
IMG_0616c_-_Copy.JPG 



Edited by TqB 2014-08-05 13:30:27
Tarquin
Quote 0 0
ryanc

Excellent sponge - I think it would have looked like this domed one originally (locked behind a paywall but you can still see the pictures).

 
 
I'm sure Joe can help you - these silica replaced fossils you find are really unusual - you have a conservation type lagerstƒÆ’‚¤tten on your hands there :)
 
Regards,
 
Ryan
 
 
Quote 0 0
TqB
Thanks, Ryan! The specimen certainly peters out inside the rock within 4cm so you may well be right about a dome.

I actually have the paper but hadn't noticed that illustration.
Also another one by Rigby and Mundy (2000) on Carb. sponges from Craven.
And the revised Treatise so if I can digest that lot I might end up with some idea of what I'm finding - it's much harder than corals...

I'll run it past Joe - I don't think it's his sort of sponge but he'll certainly know more than I do...


Edited by TqB 2014-08-05 20:58:35
Tarquin
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