Waldron Shale Questions

[minnbuckeye]

First up is a large trilobite pygidium I am not accustom to.

 

 

Next is what I am guessing is a cornulites. My hunting grounds are devoid of these. Or is it a tentaculites??? There were quite a few of these found as I went through the matrix.

 

 

Finally a complete mystery to me. Sponge or some kind of echinoderm?????? Only one was found.

 

[piranha]

1 hour ago, minnbuckeye said:

First up is a large trilobite pygidium I am not accustom to.  Finally a complete mystery to me. Sponge or some kind of echinoderm??????

 

 

Glyptambon verrucosus

 

Holloway, D.J. 1981

Silurian Dalmanitacean Trilobites from North America and the Origins of the Dalmanitinae and Synphoriinae.

Palaeontology, 24(4):695-731  PDF LINK

 

 

Astylospongia praemorsa

 

Treatise on Invertebrate Paleontology - Part E Porifera Revised Volume 3  PDF LINK

[Tidgy's Dad]

Very nice Astylospongia praemorsa.

And the other thingy is Cornulites proprius.

[minnbuckeye]

@piranha, @Tidgy's Dad. Thanks so much for the advice and ID's. All fit the specimens perfectly. Something is wrong with the system. I can not message these two and I am unable to react to a post. Are others having issues like this?

 

@piranha 

@Tidgy's Dad

 

[Kane]

Yes, it is a known issue. See the Forum Help & Suggestions subforum where these issues are being discussed.

[minnbuckeye]

@Kane, all is back to normal after 10 days of issues!!!!