South Yorkshire coal measures fossil

[DE&i]

While photographing some fossils from the Maltby coal measures South Yorkshire UK. A small piece unfortunately came away, and revealed what appears to be a seed. I haven't prepped the piece further as I'm a little unsure as to perhaps leave it as it is. 

I've read about a Upper Carboniferous seed called Trigonocarpus parkinsonii, does anyone have an example for comparison please.

 

Not sure what the pinnules are around it but they do look like Paripteris gigantea. 

 

 

 

 

 

 

 

 

 

[Mark Kmiecik]

I would expect some longitudinal striation in Triganocarpus, not prominent but at least present to some extent. That may be helpful with ID. I would not expect any diagonal or transverse striation. I don't see enough detail in the photos although they are quite good.

[DE&i]

Thank you @Mark Kmiecik for the consice information, I really appreciate that. My indecisive nature tells me not to prep it further as I don't really won't to disturb the beautiful fauna surrounding the possible seed. 

[Mark Kmiecik]

1 minute ago, DE&i said:

Thank you @Mark Kmiecik for the consice information, I really appreciate that. My indecisive nature tells me not to prep it further as I don't really won't to disturb the beautiful fauna surrounding the possible seed. 

Fauna?

[DE&i]

Sorry @Mark Kmiecik typo, should have read flora. 

[Mark Kmiecik]

4 minutes ago, DE&i said:

Sorry @Mark Kmiecik typo, should have read flora. 

Got a chuckle and a second look from me, just to make sure I didn't miss something. I would leave it as is also, unless I was certain it is a seed and that all of it is there. Seeds are relatively rare compared to foliage, so until I had more and better specimens of the foliage I would wait.

[DE&i]

Sound advice @Mark Kmiecik  I shall enjoy my surprise find as it is. 

[Strepsodus]

Here are my best Trigonocarpus seeds for comparison.  I’m not 100% certain but I don’t think your example is a Trigonocarpus seed.  I think it may be a nodule.  However I wouldn’t completely rule out seed.