Fossildude19 Posted February 17, 2017 Share Posted February 17, 2017 I usually do not buy fossils, but once in a while I see a deal, and can't resist. I won this auction of Cambrian trilobites. The only info on them is that they are from Pioche Nevada. Pioche Shale. There are 2 trilobites on the plate, not really well preserved, but ... I'm thinking one is Olenoides nevadensis. and the other may be Olenellus gilberti. Pictures are from the auction - sorry for the quality: Any thoughts are appreciated. 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...
piranha Posted February 17, 2017 Share Posted February 17, 2017 They are not Olenellus or Olenoides. Instead they should be labeled: Zacanthoides sp. Key features are the metafixigenal spines highlighted by the arrows in the photos, and the long thoracic spine that extends well past the pygidium. The genal spines are absent on the one shown on the left. Also worth noting is the straight anterior margin on the example with the genal spines. 2 Link to comment Share on other sites More sharing options...
FossilDudeCO Posted February 17, 2017 Share Posted February 17, 2017 HAHA TIM! I saw these! Great addition to your collection. Link to comment Share on other sites More sharing options...
fifbrindacier Posted February 17, 2017 Share Posted February 17, 2017 Congratulations for the trilobites and for the ID. "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...
Fossildude19 Posted February 17, 2017 Author Share Posted February 17, 2017 7 hours ago, piranha said: They are not Olenellus or Olenoides. Instead they should be labeled: Zacanthoides sp. Key features are the metafixigenal spines highlighted by the arrows in the photos, and the long thoracic spine that extends well past the pygidium. The genal spines are absent on the one shown on the left. Also worth noting is the straight anterior margin on the example with the genal spines. Thank you, Scott. I appreciate the information. Glad you are here to straighten me out. Regards, 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...
Fossildude19 Posted February 17, 2017 Author Share Posted February 17, 2017 8 hours ago, FossilDudeCO said: HAHA TIM! I saw these! Great addition to your collection. Yeah, always wanted some spiny trilobites, was just waiting for a good price. Thanks Blake. 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...
piranha Posted February 17, 2017 Share Posted February 17, 2017 I found another photo of two Zacanthoides typicalis that matches well with your trilobites. The large trilobite is missing the thoracic spine and the small one is missing the pygidium. 1 Link to comment Share on other sites More sharing options...
Fossildude19 Posted February 17, 2017 Author Share Posted February 17, 2017 Thanks again, Scott! You're the man. 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...
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