FossilSloth Posted January 25, 2018 Share Posted January 25, 2018 I found this little guy at U-Dig in Utah, and put him in my “junk pile”. When I took a close look, it appears to be more narrow than your usual Elrathia, with more body segments. Could this be an Altiocculus? Link to comment Share on other sites More sharing options...
Fossildude19 Posted January 25, 2018 Share Posted January 25, 2018 I think you may be correct. @piranha will know for sure. Tim - VETERAN SHALE SPLITTER VFOTM --- APRIL - 2015 __________________________________________________ "In every walk with nature one receives far more than he seeks." John Muir ~ ~ ~ ~ ><))))( *> About Me Link to comment Share on other sites More sharing options...
FossilDAWG Posted January 25, 2018 Share Posted January 25, 2018 I agree. Besides the larger number of thoracic segments in Altiocculus, the pygidium is very tiny (as in your specimen) compared to Elrathia. Don Link to comment Share on other sites More sharing options...
fifbrindacier Posted January 25, 2018 Share Posted January 25, 2018 "On ne voit bien que par le coeur, l'essentiel est invisible pour les yeux." (Antoine de Saint-Exupéry) "We only well see with the heart, the essential is invisible for the eyes." In memory of Doren Link to comment Share on other sites More sharing options...
piranha Posted January 25, 2018 Share Posted January 25, 2018 Altiocculus harrisi has 32 segments. Instead, this specimen with 24 segments matches better with Bolaspidella reesae. Robison, R.A., & Babcock, L.E. (2011) Systematics, paleobiology, and taphonomy of some exceptionally preserved trilobites from Cambrian Lagerstätten of Utah. University of Kansas Paleontological Contributions, 5:1-47 PDF LINK 8 Link to comment Share on other sites More sharing options...
FossilSloth Posted January 25, 2018 Author Share Posted January 25, 2018 Ah, yes. And the shape matches almost perfectly. Still cool. Thanks Link to comment Share on other sites More sharing options...
FossilDAWG Posted January 26, 2018 Share Posted January 26, 2018 Oops! I ran out of fingers and toes, and had to guess how many segments. Actually, somehow I mis-remembered that Bolaspidella is much smaller than Elrathia. My bad. Don Link to comment Share on other sites More sharing options...
Tidgy's Dad Posted January 28, 2018 Share Posted January 28, 2018 Nice find! That's a lovely trilobite. Life's Good! Tortoise Friend. Link to comment Share on other sites More sharing options...
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