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Trilobites From Nicolet River Formation, Ordovician

Jeffrey P

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These are some Ordovician trilobites I found 7/27/14 in LaPrairie, Quebec in the Nicolet River Formation. I believe some or all of them are Flexicalymene, but I'm not completely sure. A little help with the iDs would be

very appreciated. Thank you.


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I have seen both Flexicalymene and Gravicalymene listed from the Hanson Brick Pit in LaPrairie. The two are not easy to tell apart, but Gravicalymene has more of a "bell-shaped" glabella. Unfortunately it's hard to see much of that structure in your photos, because the cephalons are partly obscured by shale, or are missing, and the photos are grainy.


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Neat finds, Jeff!

Thanks for posting them.



   MOTM.png.61350469b02f439fd4d5d77c2c69da85.png      PaleoPartner.png.30c01982e09b0cc0b7d9d6a7a21f56c6.png.a600039856933851eeea617ca3f2d15f.png     Postmaster1.jpg.900efa599049929531fa81981f028e24.jpg    VFOTM.png.f1b09c78bf88298b009b0da14ef44cf0.png  VFOTM  --- APRIL - 2015  

"In every walk with nature one receives far more than he seeks."

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Thanks Don and Tim. The fossils are extremely tiny and very fragile. The one on the bottom right was originally complete, but the left side of the cephalon and part of the thorax dissolved when I was "cleaning" up the right side. I hesitate to remove more shale, fearing I might destroy them.

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