Unknown: trilo, ammo, something else?

[Mochaccino]

Hello,

 

Any idea what these are? I see Olenellid trilobite heads and an ammonite, but no idea wht the others are or where they could be from. They seem like they are from the same locality based on matrix. 

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4. Looks like some sort of faint arthropod impression?

 

 

5. No idea if this is even a fossil

 

 

[Kane]

You can rule out these Cambrian trilobite cephalons as being contemporaneous with ammonites as the latter occur more in the Mesozoic, not Palaeozoic. The trilobites appear to be from maybe California or likely Nevada.

[Mochaccino]

4 minutes ago, Kane said:

You can rule out these Cambrian trilobite cephalons as being contemporaneous with ammonites as the latter occur more in the Mesozoic, not Palaeozoic. The trilobites appear to be from maybe California or likely Nevada.

Ah that did occur to me, the trilos seemed like something from the Cambrian Pioche shale, and I didn't think Ammos existed then. Thank you.

[Kane]

My guess would be Olenellus fowleri, from the Pioche as you mentioned.

[piranha]

The pinkish-brown matrix with the olenellids is typical for the Latham Shale. The wide preglabellar field on the large specimen is a good match for Olenellus nevadensis.

 

 

Mount, J.D. 1976
Early Cambrian Faunas from Eastern San Bernardino County, California.
Southern California Paleontological Society Bulletin, 8(12):173-182  PDF LINK

[Mochaccino]

1 hour ago, Kane said:

My guess would be Olenellus fowleri, from the Pioche as you mentioned.

 

46 minutes ago, piranha said:

The pinkish-brown matrix with the olenellids is typical for the Latham Shale. The wide preglabellar field on the large specimen is a good match for Olenellus nevadensis.

 

 

Mount, J.D. 1976
Early Cambrian Faunas from Eastern San Bernardino County, California.
Southern California Paleontological Society Bulletin, 8(12):173-182  PDF LINK

 

 

Thank you! Any ideas on the other pieces?