Seaforth Posted November 25, 2014 Share Posted November 25, 2014 Today I stopped at my favorite fossil site near Amsterdam, Holland for an hours hunt for trilobitefrags and came home with about 6 tailsections. This being the best of the 6. Been hunting that site for about 3 years now almost weekly but have only ever found 4 more or less complete trilo's but trilobite frags are relatively plentifull, usually the tails Link to comment Share on other sites More sharing options...
Fossildude19 Posted November 25, 2014 Share Posted November 25, 2014 Nice pygidium! Any idea on the genus/species? 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...
Seaforth Posted November 25, 2014 Author Share Posted November 25, 2014 Nice pygidium! Any idea on the genus/species? Regards, As far as I can tell Cummingella (Cummingella) belisama ssp Oddly enough these are not indiginous to Holland but can be found in riverside boulders imported from Belgian quarries by the Amsterdam city counsil to reinforce the canalbanks. Link to comment Share on other sites More sharing options...
Wrangellian Posted November 25, 2014 Share Posted November 25, 2014 I was going to ask if these were the ones from the Belgian rock brought in by the City of Amsterdam... Very nice. Carboniferous? Have you shown your complete ones on the Forum yet? I don't recall if I ever saw them. Link to comment Share on other sites More sharing options...
Seaforth Posted November 25, 2014 Author Share Posted November 25, 2014 I was going to ask if these were the ones from the Belgian rock brought in by the City of Amsterdam... Very nice. Carboniferous? Have you shown your complete ones on the Forum yet? I don't recall if I ever saw them. Yes they are the rocks brought in from Belgium by the City of amsterdam. I thought they were Devonian but, as someone on this forum stated, that seems unlikely. I will need to look into that again. I will sort out a pic i have of my (more or less) ccomplete one tomorrow. I see you are from Vancouver Island. Been there a number of years ago (Comox). Very nice! Cheers from Holland! Pat Link to comment Share on other sites More sharing options...
Wrangellian Posted November 26, 2014 Share Posted November 26, 2014 ... I see you are from Vancouver Island. Been there a number of years ago (Comox). Very nice! Cheers from Holland! Pat That's fossil country too, did you get a chance to do any collecting while you were over here? Link to comment Share on other sites More sharing options...
Seaforth Posted November 26, 2014 Author Share Posted November 26, 2014 That's fossil country too, did you get a chance to do any collecting while you were over here? No, sadly not! I was visiting a Comox based friend and was quite busy driving around on the island but wasnt into fossils then. It was in 2001 if I remember correctly and it wasnt untill 2005 I got interested in fossils. Such a shame. Love the island btw, we stayed in Comox but also visited Victoria and lots of other places and (something I will forever remember) Telegraph Cove for Orca watching. That is the most beautifull place I ever visited! What sort of fossil do you find over there? Link to comment Share on other sites More sharing options...
Wrangellian Posted November 26, 2014 Share Posted November 26, 2014 You must not have been to many places... Mostly Upper Cretaceous marine fossils here. Have a look in the 'Locations' category for examples. Link to comment Share on other sites More sharing options...
Fred Posted November 26, 2014 Share Posted November 26, 2014 These trilobite rear ends, or pygidia as we call them, are from the Belgian Carboniferous (Mississippian). Like from the region of Tournai, but there are other quarries yielding similar material. Make sure to always collect both positive and negative imprints. The shell on these is usually well preserved, and whitish, but sometimes it sticks to the negative imprint. A skilled preparator is able to recover it. Paleo database, information and community Link to comment Share on other sites More sharing options...
Seaforth Posted November 26, 2014 Author Share Posted November 26, 2014 These trilobite rear ends, or pygidia as we call them, are from the Belgian Carboniferous (Mississippian). Like from the region of Tournai, but there are other quarries yielding similar material. Make sure to always collect both positive and negative imprints. The shell on these is usually well preserved, and whitish, but sometimes it sticks to the negative imprint. A skilled preparator is able to recover it. Yes you are correct!. The rocks in which they are found originate from the Tournai region. And yes, I often find them with their shell intact. I always look for the positives & the negatives. I find that the negatives often show more detail then the positives. Sadly I hardly ever find complete trilobites, usually only the tail or the odd cheek. Pat Link to comment Share on other sites More sharing options...
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