Mifflin group Platteville trilobite frags ID

[Mignoffo]

Here are a handful of trilobite fragments Mifflin Group, Platteville formation of Ordovician. Most are very tiny, my son and I pick them out with a loupe then I photograph them @ 1X1.

 

 

Here is my son, Alan on a search. He is almost 11 years old, his eyes are getting to be noticeably better than mine (43).

 

 

So for the trilos, I'll start with a couple pygidia.

 

 

Pic # 1

 

 

Pic # 2

 

 

 

 

This is a real question, I don't even know what it is. The texture looks trilobitish, at the very least is definitely not consistent with bryozoan or mollusc, so ?

Pic #3

 

 

 

 

Here is an individual thoracic segment.

Pic # 4

 

 

Thanx for any help. I have thoughts on these, but would really appreciate any more input.

 

Matt/Al

[ynot]

@piranha should know.

Nice pieces.

Can You post a picture of the whole hash plate?

[Mignoffo]

Mostly from these couple. There are many many more trilobite fragments on the larger piece.

[Darktooth]

#3 might be an ostracod?

[ynot]

Thanks for the additional picture.

On the large piece upper left it looks like a cephalon with the center chipped off.

[Mignoffo]

7 minutes ago, ynot said:

Thanks for the additional picture.

On the large piece upper left it looks like a cephalon with the center chipped off.

Oh yes there are several cephalons and pygidia on that piece. Thaleops, Isotelus, Gabriceraurus, and more.

[piranha]

 

  Sceptaspis lincolnensis

 

  Calyptaulax plattevillensis

 

  Thaleops ovata pygidium

[Mignoffo]

@piranha

 thank you so much. I'll post a handful more within the next few days. Any thoughts on the individual thoracic segment in my last pic?

 

[Nimravis]

Nice pics and great finds.

[piranha]

This one appears to be the hypostome of Ceraurinella scofieldi.  It is flipped sideways in the matrix.

 

 

[Mignoffo]

Thanx for the help, you're good!

 

I tentatively Identified them similarly except you enlightened me on the thaleops pygidium, and the Sceptaspis. I have a few more that I'll get up sooner or later.

 

 

[fifbrindacier]

You have plenty of things in there, thank you for sharing.