Fossil I.D. Please, Somerset, UK

[KittyandCece]

Hi all, new to the site, just hoping if someone might help us find out what this fossil is? Found with my daughter in Somerset, UK. Thanks in advance  

 

 

 

[Fossildude19]

Welcome to the Forum.

 

I see some sort of bivalve fossil there. Maybe some natives will be able to say more, about genus or species.

 

@TqB  @Tidgy's Dad

[TqB]

7 minutes ago, Fossildude19 said:

Welcome to the Forum.

 

I see some sort of bivalve fossil there. Maybe some natives will be able to say more, about genus or species.

 

@TqB  @Tidgy's Dad

I don't recognise it I'm afraid. Possibly part of a trigoniid?

[Fossildude19]

@KittyandCece

 

Somerset has a bunch of different localities - anything more detailed for location?

It's a big area. 

[TqB]

1 hour ago, Fossildude19 said:

@KittyandCece

 

Somerset has a bunch of different localities - anything more detailed for location?

It's a big area. 

It'll be Jurassic, probably Middle but I'm not familiar enough with facies from the area. (There is Carboniferous in the county too but I'm pretty sure it's not. )

[KittyandCece]

3 hours ago, Fossildude19 said:

Welcome to the Forum.

 

I see some sort of bivalve fossil there. Maybe some natives will be able to say more, about genus or species.

 

@TqB  @Tidgy's Dad

Thank you!

[KittyandCece]

1 hour ago, TqB said:

It'll be Jurassic, probably Middle but I'm not familiar enough with facies from the area. (There is Carboniferous in the county too but I'm pretty sure it's not. )

Hi, thanks for your reply, it was found in Nunney in the Mendips in Somerset. Reading in to the area a bit more I think it is Carboniferous there

[KittyandCece]

3 hours ago, TqB said:

I don't recognise it I'm afraid. Possibly part of a trigoniid?

Ah yes that looks like it might be actually, thanks so much! 

[TqB]

10 hours ago, KittyandCece said:

Hi, thanks for your reply, it was found in Nunney in the Mendips in Somerset. Reading in to the area a bit more I think it is Carboniferous there

Yes, there is a rather famous Carboniferous outcrop there with fissures containing much later Triassic mammal remains.  But there's also Jurassic Inferior Oolite overlying it which is what your rock looks like. 

Edited March 21 by TqB

[KittyandCece]

3 hours ago, TqB said:

Yes, there is a rather famous Carboniferous outcrop there with fissures containing much later Triassic mammal remains.  But there's also Jurassic Inferior Oolite overlying it which is what your rock looks like. 

Fascinating, thank you! We also found some echinoids and several brachiopods there too  

[Coco]

Hi,

 

Pics about echinoids ?

 

Coco

[KittyandCece]

2 hours ago, Coco said:

Hi,

 

Pics about echinoids ?

 

Coco

 

[Coco]

It reminds me of Discoides subuculus du Cénomanien, but it does not fit with the stratigraphy... Size is an important factor for a determination.

 

Coco

[Tidgy's Dad]

Yes, Middle Jurassic yellow limestones. Probably the Inferior Oolite.

Nice finds,

I was born and raised in Somerset but never collected at that location, sadly.

I agree that the mystery item could be a trigonid bivalve, or maybe a part of an ammonite outer whirl.

[TqB]

On 3/21/2024 at 3:21 PM, KittyandCece said:

 

The echinoids look like Holectypus depressus, frequent in the Middle Jurassic.

[Coco]

Hi,

 

You’re probably more right than me !

 

Coco