palaeopix Posted December 3, 2011 Share Posted December 3, 2011 I'm with Don and Scott! I think you have a pretty nice example of Pseudogygites there Eric!!!!! Dan Link to comment Share on other sites More sharing options...
trilobiteruss Posted December 3, 2011 Share Posted December 3, 2011 Very cool bugs Russ! Thanks, they are my new prizes am enjoying them! Link to comment Share on other sites More sharing options...
Kosmoceras Posted December 14, 2011 Share Posted December 14, 2011 My other cambro trilobite, 23cm long! This one is complete, unlike the other one. Link to comment Share on other sites More sharing options...
Sinopaleus Posted December 14, 2011 Share Posted December 14, 2011 very cool thomas!! although the glabella is hard to make out, the eyes and the rest are great. the crack running through the cephalon shows that it is authentic. great trilo!! Link to comment Share on other sites More sharing options...
Kosmoceras Posted December 14, 2011 Share Posted December 14, 2011 very cool thomas!! although the glabella is hard to make out, the eyes and the rest are great. the crack running through the cephalon shows that it is authentic. great trilo!! Thanks! I have 2 real now. Link to comment Share on other sites More sharing options...
dudeman Posted December 14, 2011 Share Posted December 14, 2011 Here is my smallest Trilo, it's so cute! Just under 3mm Troy Nelson Link to comment Share on other sites More sharing options...
Missourian Posted December 15, 2011 Share Posted December 15, 2011 Hoikaspis matacences Mid Ordovician San Lucas Ocuri Formation Chuquisaca Provence, Bolivia This is my favorite non-local trilobite. It is huge, and the imperfections give it character. Context is critical. Link to comment Share on other sites More sharing options...
Cpt. Nemo Posted December 15, 2011 Share Posted December 15, 2011 Two other Ordovician trilobite from France, not necessarily attractive but what I like: Saltérocoryphe salteri Neseuretus tristani Collection & Exchanges Link to comment Share on other sites More sharing options...
pleecan Posted December 15, 2011 Share Posted December 15, 2011 Oops... sorry Eric as there was a lot going on with the sudden flurry of trilobites posted by Russ. Although you have the basic information, the only thing I would have suggested is picking up a copy of the ROM's classic monograph: The Ordovician Trilobite Pseudogygites Kobayashi in Eastern and Arctic North America Royal Ontario Museum Publications in Life Sciences (November 2, 1979) Rolf Ludvigsen Happily this long out of print publication was finally digitized by the ROM at the internet archive in September 2011. PDF LINK Thanks for the link Scott! Peter Link to comment Share on other sites More sharing options...
trilobiteruss Posted December 17, 2011 Share Posted December 17, 2011 Here is my smallest Trilo, it's so cute! Just under 3mm Cool, that probably was one of the first two trilobites I ever had when I started collecting as a kid. Those little guys are neat! Link to comment Share on other sites More sharing options...
trilobiteruss Posted December 17, 2011 Share Posted December 17, 2011 My other cambro trilobite, 23cm long! This one is complete, unlike the other one. That is a good one, maybe one of best I have seen, looks largely unprepped and original from split, many are doctored but yours looks great. Good find on your part, thanks for sharing with all of us! Link to comment Share on other sites More sharing options...
Kosmoceras Posted December 18, 2011 Share Posted December 18, 2011 (edited) Cool, that probably was one of the first two trilobites I ever had when I started collecting as a kid. Those little guys are neat! Same, most beautiful in my collection present. That is a good one, maybe one of best I have seen, looks largely unprepped and original from split, many are doctored but yours looks great. Good find on your part, thanks for sharing with all of us! Thanks, sadly this one is never seen, it is on the back of the matrix of my other cambro which is a shame. Edited December 18, 2011 by Odinofthenorth Link to comment Share on other sites More sharing options...
PaleoPutz Posted December 18, 2011 Share Posted December 18, 2011 I may go see Mr. Carroll before he heads to Arizona. Hopefully, I will have a few worthy specimens for this thread. I am hoping he will put together a few for me sort of like a chef's choice menu. I would never be able to decide on my own. Link to comment Share on other sites More sharing options...
Wrangellian Posted December 19, 2011 Share Posted December 19, 2011 Are you sure Eric? It doesn't look like an internal mold to me, but you have the actual specimen and I just have your photos to go by. Your specimen seems pretty decent to me. That whole Pseudogygites latimarginatus name still bugs me. P. canadensis was based on an exquisite complete specimen, and P. latimarginatus was based on a poor pygydium that wasn't even recognized as a Pseudogygites for many years. Sometimes the law of priority sucks. Don The Pseudos typically have a very thin layer of light colored integument. You can see a few flakes here and there on Eric's example. Attached are a few specimens with most of the integument (shell) still intact. I'm with Don and Scott! I think you have a pretty nice example of Pseudogygites there Eric!!!!! Dan Thanks all, So I guess I was right, that the thin shell is mostly missing? The 'flakes' seem to go down between the segments. I don't know how common this is but I guess it would be pretty hard to find a specimen like your example, Scott! Don, which name is the correct name? Is P. canadensis valid or are they all latimarginatus based on the law of priority? Eric Link to comment Share on other sites More sharing options...
FossilDAWG Posted December 20, 2011 Share Posted December 20, 2011 Hi Eric, I'm afraid all the Ontario ones are P. latimarginatus. P. canadensis is an invalid name, as it is a junior synonym of P. latimarginatus. I've seen slabs with multiple Pseudogygites, including one with 8 complete specimens, from construction sites in Ottawa. Not that I ever found such a specimen, though, but I do have a couple of single specimens. I also have a pygidium that is 9 cm long, what a monster that would have been if it was complete. Don Link to comment Share on other sites More sharing options...
Wrangellian Posted December 26, 2011 Share Posted December 26, 2011 (edited) OK, gotcha, you think it would be better to do the description based on the better specimen. I know what you mean; there was a snail from here called Fimbrivasum somethingorother (I dont have the paper handy, you may know of it) described about 10 yrs ago that was based on crummy specimens, but better ones have been found since and I think I have one of them, and it would be nice to redo it but I guess that's not how science works. To keep it about trilos, here's another one to show - again it may not be that spectacular compared to what's been shown but, as disjointed as it is, it's the best example I have of Olenellus from the Eager Fm near Cranbrook BC. (Does anyone know the species name or any other info on these?) Sorry for my lack of photo skills. Edited December 26, 2011 by Wrangellian Link to comment Share on other sites More sharing options...
squalicorax Posted December 27, 2011 Share Posted December 27, 2011 here is a few Maurotarion sp. from the Silurian Waldron Shale My Flickr Page of My Collection: http://www.flickr.com/photos/79424101@N00/sets Link to comment Share on other sites More sharing options...
trilobiteruss Posted December 27, 2011 Share Posted December 27, 2011 Nice! Link to comment Share on other sites More sharing options...
fengw03 Posted December 27, 2011 Share Posted December 27, 2011 Awesome! Thanks for sharing. Link to comment Share on other sites More sharing options...
piranha Posted January 9, 2012 Share Posted January 9, 2012 here is a few Maurotarion sp. from the Silurian Waldron Shale Nice finds Nathan! Link to comment Share on other sites More sharing options...
randygeki Posted January 9, 2012 Share Posted January 9, 2012 (edited) Heres mine Brachyaspidion microps Edited January 20, 2012 by randygeki Link to comment Share on other sites More sharing options...
Missourian Posted January 9, 2012 Share Posted January 9, 2012 Ameura missouriensis Winterset Limestone, Pennsylvanian Kansas City, Missouri It's hard to pick a favorite, but this one is right up there. Context is critical. Link to comment Share on other sites More sharing options...
randygeki Posted January 9, 2012 Share Posted January 9, 2012 I can Ameura missouriensis Winterset Limestone, Pennsylvanian Kansas City, Missouri It's hard to pick a favorite, but this one is right up there. I can see why, nice one! Link to comment Share on other sites More sharing options...
fengw03 Posted January 12, 2012 Share Posted January 12, 2012 Nice fossil. By the way, what are the dark dots on the matrix? Are they fossils? Heres mine Brachyaspidion microps Link to comment Share on other sites More sharing options...
fengw03 Posted January 12, 2012 Share Posted January 12, 2012 Wow, that is so beautiful! I love the color, it's like a porcelain artwork! Ameura missouriensis Winterset Limestone, Pennsylvanian Kansas City, Missouri It's hard to pick a favorite, but this one is right up there. Link to comment Share on other sites More sharing options...
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