Eoptychoparia - A valid genus?

[siteseer]

A friend has a trilobite marked as Eoptychoparia piochensis from the Cambrian of Pioche, Nevada (Pioche Formation).  I wasn't familiar with it and looked it up but couldn't find much info at all.  Is that genus valid (maybe just rare)?  I collected a couple of different spots out there about twenty years ago - didn't find much - and don't remember hearing about E. piochensis. 

 

Thanks,

 

Jess

[FossilDAWG]

I'd look it up but @piranha will probably drop in to answer before I could get anything useful posted.

 

Don

[piranha]

Eoptychoparia remains a valid genus, however, the current name combination of this trilobite is: Eokochaspis piochensis

Palmer 1979 erected the new species and Sundberg & McCollum 2000 reclassified it within the new genus: Eokochaspis

 

 

Palmer, A.R., Halley, R.B. 1979

Physical Stratigraphy and Trilobite Biostratigraphy of the Carrara Formation (Lower and Middle Cambrian) in the Southern Great Basin. 

United States Geological Survey, Professional Paper, 1047:1-131  PDF LINK

 

Sundberg, F.A., McCollum, L.B. 2000

Ptychopariid Trilobites of the Lower-Middle Cambrian Boundary Interval, Pioche Shale, Southeastern Nevada.

Journal of Paleontology 74(4):604-630  PDF LINK

[siteseer]

23 hours ago, FossilDAWG said:

I'd look it up but @piranha will probably drop in to answer before I could get anything useful posted.

 

Don

 

Hi Don,

 

Yeah, Pirahna was too fast for you with a scan and links.  Thanks for dropping in, though.

 

Jess

[siteseer]

22 hours ago, piranha said:

Eoptychoparia remains a valid genus, however, the current name combination of this trilobite is: Eokochaspis piochensis

Palmer 1979 erected the new species and Sundberg & McCollum 2000 reclassified it within the new genus: Eokochaspis

 

 

Palmer, A.R., Halley, R.B. 1979

Physical Stratigraphy and Trilobite Biostratigraphy of the Carrara Formation (Lower and Middle Cambrian) in the Southern Great Basin. 

United States Geological Survey, Professional Paper, 1047:1-131  PDF LINK

 

Sundberg, F.A., McCollum, L.B. 2000

Ptychopariid Trilobites of the Lower-Middle Cambrian Boundary Interval, Pioche Shale, Southeastern Nevada.

Journal of Paleontology 74(4):604-630  PDF LINK

 

Hi Scott,

 

Thanks for checking and adding the scans and links.  I appreciate it

 

Jess.