Peronopsis Id Needed

[trilospain]

I would like to know your opinion about this peronopsis.

I have it labeled like Peronopsis sp from Utah. Size = 10 mm. Not more information.

I do have another peronopsis (interstricta) but it's black and looks like different.

I don't have too much knowledge about USA Cambrian trilobites although they are very nice.

Any help will be grateful

Thanks you in advance

[txemiku]

Hello my friend,

I have been checking your image and comparing to the images of different types of peronopsis from utah.

I suggest the following:

Name: Peronopsis interstricta

Locality: Wheeler Amphitheatre, House Range, Millard Co., Utah

Stratigraphy: Wheeler Shale Fm., Middle Cambrian

To see more visit this site:

http://www.westernta.com/WTA.htm

Saludos

[ebrocklds]

i agree with P. interstricta. it looks like it from the red, Marjum shale formation however. there are a few types of agnostids from that formation, Ptychagnostus cuyanas ans Ptychagnostus michaelinei (sp?) but yours is not either of those. westernta is a great reference for many trilos but keep in mind there are a few errors on the page.

Brock

[trilospain]

Thanks you very much.