BLT Posted May 24, 2019 Share Posted May 24, 2019 While cleaning the brachiopods which I found on my recent trip to Penn Dixie, I noticed something that I cannot identify. I initially thought it was a shell fragment due to the white color. Upon closer inspection, I thought it might be a bryozoan? Now I’m wondering if it could be a tiny crab? Link to comment Share on other sites More sharing options...
Fossildude19 Posted May 24, 2019 Share Posted May 24, 2019 Eldredgeops cephalon, I'm pretty sure. The eye is off to the right. 3 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...
BLT Posted May 24, 2019 Author Share Posted May 24, 2019 1 hour ago, Fossildude19 said: Eldredgeops cephalon, I'm pretty sure. The eye is off to the right. Ah, gotcha. The color was throwing me off. Thanks! Link to comment Share on other sites More sharing options...
Fossildude19 Posted May 24, 2019 Share Posted May 24, 2019 1 hour ago, BLT said: Ah, gotcha. The color was throwing me off. Thanks! I found this Eldredgeops rana about 6 miles away at a different site. 2 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...
BLT Posted May 24, 2019 Author Share Posted May 24, 2019 17 minutes ago, Fossildude19 said: I found this Eldredgeops rana about 6 miles away at a different site. I was under the false assumption that all trilobites from that general area were black. What causes the color variations? Link to comment Share on other sites More sharing options...
Kane Posted May 24, 2019 Share Posted May 24, 2019 It depends on the mineral availability at the time of their deposition and fossilization, although in some uncommon cases it can be on account of chromatophores. 1 ...How to Philosophize with a Hammer Link to comment Share on other sites More sharing options...
BLT Posted May 24, 2019 Author Share Posted May 24, 2019 2 minutes ago, Kane said: It depends on the mineral availability at the time of their deposition and fossilization, although in some uncommon cases it can be on account of chromatophores. Gotcha. Thank you! Link to comment Share on other sites More sharing options...
Fossildude19 Posted May 24, 2019 Share Posted May 24, 2019 They can be brown, too. 2 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...
BLT Posted May 25, 2019 Author Share Posted May 25, 2019 Here is another whitish trilobite I found in one of my Penn Dixie rocks. I’m wondering why it turned dark (and remained so when dried) after cleaning it? Link to comment Share on other sites More sharing options...
Kane Posted May 25, 2019 Share Posted May 25, 2019 Likely it was just a mineral staining/coating. 1 ...How to Philosophize with a Hammer Link to comment Share on other sites More sharing options...
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