Panlongia and two other Cambrian mysteries

[Misha]

Hello to all!

I have recently won the rolling auction here on the forum, and one of the items included was a Cambrian panlongia from China.

I understand that the two species of Panlongia can be distinguished by the presence of spines along the sides of the thorax but I really can't tell on this piece, so if there is any other way to know which it is I would love to hear it!

At the same time the same piece of matrix features something else right next to it, I am not sure what it is, could it be a brachiopod?

And when flipped over there is another fossil looking object below it, is this some kind of ichnofossil or something else?

Thank you very much,

Misha

[piranha]

Attached is the English section and figures from:

 

Liu, Q., Luo, H.L., Chen, L.Z., Hu, S.X. 2006

Panlongia, a new trilobitomorph genus from the Lower Cambrian, Kunming, Yunnan.

Acta Palaeontologica Sinica, 45(3):384-392

 

 

 

[Misha]

8 minutes ago, piranha said:

Attached is the English section and figures from:

 

Liu, Q., Luo, H.L., Chen, L.Z., Hu, S.X. 2006

Panlongia, a new trilobitomorph genus from the Lower Cambrian, Kunming, Yunnan.

Acta Palaeontologica Sinica, 45(3):384-392

Thank you for providing this.

[piranha]

Here are the side by side comparison text figures of Panlongia tetranodusa and Panlongia spinosa: