Two very tiny fossils.

[Pleuromya]

Hello, these tiny fossils were difficult to photograph, I had to improvise by sellotaping a magnifier to the camera lens, as I do not have anything that can do the equivalent where I am now.

I was wondering if one of them is possibly a bit of crinoid? The circular bit seemed to remind me of modern bone. Sorry they are muddy, I'd probably break them if I tried to wash them. Scale is in centimetres, and they were found in Northamptonshire, UK, which is Jurassic.

Thanks.

[Rockwood]

Siphuncle ?

[Gen. et sp. indet.]

The first one looks like a serpulid. 

[Pleuromya]

10 minutes ago, Rockwood said:

Siphuncle ?

Which bit sorry? The one in the first two photos?

[Rockwood]

1 minute ago, Chris Jones said:

Which bit sorry? The one in the first two photos?

I think so. 

I was just wrestling with my 'noticed' there were two. 

[Herb]

serpulid?. 

[Pleuromya]

Thanks for all the replies. It seems that it most likely is a serpulid then? Does anybody know what the disc-shaped bit is?

[Herb]

maybe a filled piece of tube

[Pleuromya]

2 minutes ago, Herb said:

maybe a filled piece of tube

Thanks, a serpulid tube?

[KOI]

Hi! The elongated piece is most likely a tube of a marine worm (serpulid). A while ago, I filmed one supposedly collected from Jurassic deposits in Ukraine.

See the tube at 10:04 on the video below. Here is an article about them: https://curioussengi.wordpress.com/2016/06/04/on-the-wings-of-worm-tubes/

 

[Pleuromya]

8 hours ago, KOI said:

Hi! The elongated piece is most likely a tube of a marine worm (serpulid). A while ago, I filmed one supposedly collected from Jurassic deposits in Ukraine.

See the tube at 10:04 on the video below. Here is an article about them: https://curioussengi.wordpress.com/2016/06/04/on-the-wings-of-worm-tubes/

 

Thanks.