Caleb Posted December 20, 2012 Share Posted December 20, 2012 I've wanted to start a topic showing the varieties of trilobite eyes since I did one about Hypostomes but I lacked the ability/camara to do so well. With my new toy, I can now photograph small things much more easily. If you have photos of other trilobite eyes, feel free to add them to the thread. I'll start with my Devonian Moroccan bugs first, since I don't have many. Acastoides Coltraneia oufatensis Cornuproetus cornutus Moraccanites malladoides Paralejurus hamlagdadicus Thysanopeltis speciosa 1 Caleb Midwestpaleo.com Link to comment Share on other sites More sharing options...
Caleb Posted December 20, 2012 Author Share Posted December 20, 2012 And here are a couple North American bugs: Dalmentites limulurus Devonian The Caleb Quarry, New York Denella sp. Denella is the closest match to this bug I have been able to find. It's an un-described Pterygometopid, weather or not it belongs to the genus Denella is to be determined. Maquoketa Formation Upper Ordovician, Richmondian Southeast Minnesota Dolichoharpes reticulata Platteville Formation Middle Ordovician, Blackriverian Southwest Wisconsin Eldredgeops norwoodensis This species differs from the others in a few ways, but one of the key features is fewer eye facets. Little Cedar Formation Johnson County, Iowa, near where the MAPSshow will be this year! Caleb Midwestpaleo.com Link to comment Share on other sites More sharing options...
Missourian Posted December 20, 2012 Share Posted December 20, 2012 The eyes have hills! Context is critical. Link to comment Share on other sites More sharing options...
smokeriderdon Posted December 20, 2012 Share Posted December 20, 2012 OK, here is a Phacops rana from West By God... Link to comment Share on other sites More sharing options...
Caleb Posted December 20, 2012 Author Share Posted December 20, 2012 Very cool, love the preservation. Phacopid eyes are among my favorite. Caleb Midwestpaleo.com Link to comment Share on other sites More sharing options...
piranha Posted December 20, 2012 Share Posted December 20, 2012 The reigning champ of schizochroal lens counts is Fenestraspis with approximately 900 lenses arranged in 50 vertical files of up to 22 lenses per file. Fenestraspis amauta Lower Devonian (Pragian–Emsian) Belén Formation - Chacoma, Bolivia Link to comment Share on other sites More sharing options...
Ludwigia Posted December 20, 2012 Share Posted December 20, 2012 Not the best of shots, but at least it gives an idea. Nyterops hollandi (Van Viersen 2007) from the Eifelian in Belgium. Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
PRK Posted December 21, 2012 Share Posted December 21, 2012 (edited) Ouch, I've forgotten the name. It's the common from morocco.-------ok thanks to piranha the name is Coltraneia sp. the very large eyes on this trilobite were evolved for 360degree vision. movement could be seen from all angles Edited December 25, 2012 by PRK Link to comment Share on other sites More sharing options...
Caleb Posted December 21, 2012 Author Share Posted December 21, 2012 Ouch, I've forgotten the name. It's the common from morocco. ANYBODY? That one looks to be a Coltraneia, I love those bugs and their large eyes. Caleb Midwestpaleo.com Link to comment Share on other sites More sharing options...
PRK Posted December 21, 2012 Share Posted December 21, 2012 Hi calib, thanks. Although that is not the name I remember. That certainly could be possible.. Have they changed recently? Link to comment Share on other sites More sharing options...
piranha Posted December 21, 2012 Share Posted December 21, 2012 Hi calib, thanks. Although that is not the name I remember. That certainly could be possible.. Have they changed recently? Treveropyge is the old name Link to comment Share on other sites More sharing options...
PRK Posted December 21, 2012 Share Posted December 21, 2012 (edited) Ahhhhh! Yes, that's it !!! Coltraneia it is then. Thanks caleb AND piranha Edited December 21, 2012 by PRK Link to comment Share on other sites More sharing options...
Missourian Posted December 21, 2012 Share Posted December 21, 2012 Ameura missouriensis Westerville Limestone, Pennsylvanian Jackson County, Missouri Context is critical. Link to comment Share on other sites More sharing options...
Herb Posted December 23, 2012 Share Posted December 23, 2012 A few Devonian Phacops from Sylvania, Ohio. "Absence of evidence is not evidence of absence"_ Carl Sagen No trees were killed in this posting......however, many innocent electrons were diverted from where they originally intended to go. " I think, therefore I collect fossils." _ Me "When you have eliminated the impossible, whatever remains, however improbable, must be the truth."__S. Holmes "can't we all just get along?" Jack Nicholson from Mars Attacks Link to comment Share on other sites More sharing options...
Caleb Posted December 24, 2012 Author Share Posted December 24, 2012 (edited) A few Devonian Phacops from Sylvania, Ohio. Silica Shale trilobites are amazing! Edited December 24, 2012 by Caleb Caleb Midwestpaleo.com Link to comment Share on other sites More sharing options...
Caleb Posted December 24, 2012 Author Share Posted December 24, 2012 Here is an uncommon bug, mostly we only find the hypostomes.. Hypodicranotus sp. Platteville Formation, Mifflin member Middle Ordovician, Blackriverian Southwest Wisconsin Caleb Midwestpaleo.com Link to comment Share on other sites More sharing options...
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