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ID on a fossil from Decorah Formation, MN


TheGoblinKing

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20200220_135249.thumb.jpg.42aecc84c88708479d17be220fdf2b4f.jpg20200220_135332.thumb.jpg.d020ec4c9c7e54a3e1aebe24394e0194.jpg20200220_135304.thumb.jpg.acabf07d38a931e4e178959f3ecd4006.jpg20200220_135514.thumb.jpg.682b5489313c2f7c83d308002f138b9c.jpg20200220_135536.thumb.jpg.a33e6d25052c08bbb9e62442b25ccf06.jpgI found this plate near in the upper decorah formation Minnesota (Ordovician period limestone).

These chunks are frequently littered with trilobite bits and fragments but this lookk a little odd to me. It has a "knob" or bump structur on one side and a gradual bend on the other. Its still partially covered by coral and debris but most of it is exposed. Any ideas? :)

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Looks like the genal spine to a trilobite like Ceraurus. 

Many times I've wondered how much there is to know.  
led zeppelin

 

MOTM.png.61350469b02f439fd4d5d77c2c69da85.png PaleoPartner.png.30c01982e09b0cc0b7d9d6a7a21f56c6.png IPFOTM.png IPFOTM2.png IPFOTM3.png IPFOTM4.png IPFOTM5.png

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