Brachiopod ID Request please

[Denis Arcand]

I recently found this brachiopod in an Upper Ordovician formation, I usually find hundreds of sowerbyella and other fossilized gastropods, this one seems rare in this formation as these are the only ones I have found for this genus.

 

An ID would be much appreciated!

 

Thanks!

 

 

 

[Adam86cucv]

I don't know what they are but I do like hash plates.  Maybe @Tidgy's Dad might know?

[Tidgy's Dad]

No, I'm afraid I don't, though I feel that I should. 

Lovely finds. 

[Denis Arcand]

31 minutes ago, Adam86cucv said:

I don't know what they are but I do like hash plates. 

 

 

I can spend hours staring at hash plates with jeweler's glasses, so much to see from a long gone world.

 

Thanks, @Tidgy's Dad and @Adam86cucv

[Tidgy's Dad]

Paurorthis is what I was thinking of. Not quite right, but close? 

[Denis Arcand]

On 10/29/2021 at 9:30 PM, Tidgy's Dad said:

Paurorthis is what I was thinking of. Not quite right, but close? 

 

It's close, but I'm not aware of these in my area.

 

I learn that Catazyfa Headi was found at the same site, although my fossil is generally more triangular in shape.

 

I also found this one to be about the same size, the middle part of which is a bit the same, triangular, except for this one the mound is more round in shape.

 

What do you think, could they both be  Catazyfa Headi ?

 

 

 

 

 

 

 

 

 

[Tidgy's Dad]

That last one may be Catazyga headi. 

The other ones, definitely not. 

[Denis Arcand]

hebertelia occidentalis is a possibility for that formation,  I see the resemblance for the first fossil, what do you think ?

[Tidgy's Dad]

Nope, I have dozens of H. occidenlalis and these are nothing like them.

 

 

Edited October 31, 2021 by Tidgy's Dad

[Misha]

I cannot help but just wanted to say that those are some beautiful brachiopods!

[kgbudge]

My first thought was some kind of winged spirifer, but I realize that's very imprecise. Beautiful specimens regardless.

 

[Denis Arcand]

On 10/31/2021 at 9:44 AM, Tidgy's Dad said:

That last one may be Catazyga headi. 

The other ones, definitely not. 

I took a photo from above because it is difficult to compare correctly with my previous photo. The first photo below is the unidentified fossil the one you call 'the others', I think it's badly eroded as you barely see the ribs anymore and i believed it has lost the lower part  that used to be below the dotted line. The following images are two examples of what we thought was Catazyga headi, as you can see the dotted lines are almost identical. The lines were drawn to follow the break line where it tends to break. The first photo shows the fossil when it has lost all of its lower part, in the second photo it only lost half of it, the third photo show the complete specimen but we can clearly see the fracture line. In the first picture the fossil is half the size of the other two , this might explain why the mound maybe less pronounce for this one. 

 

I think they are probably all Catazyga headi eroded and broken to varying degrees, what do you think?

 

It's still make beautiful picture do.

 

 

[Tidgy's Dad]

Up to you. 

But the winged ones just aren't. 

[Denis Arcand]

 

 

17 hours ago, Tidgy's Dad said:

But the winged ones just aren't. 

I agree , they don't look alike. I really don't have the eye for ID. 

 

Thanks! 

[Daniel Fischer]

Does anyone know what are the fossils on the low right corner of the first picture? Because I have some very similar fossils.

[Tidgy's Dad]

9 hours ago, Daniel Fischer said:

Does anyone know what are the fossils on the low right corner of the first picture? Because I have some very similar fossils.

Bits of rhynchonellid brachiopod, I think.