Sinopaleus Posted December 4, 2012 Share Posted December 4, 2012 (edited) Ostracoderms are a rare group of fish! They are one of the earliest members of fish! The taxon Ostracodermi consists of the following groups: Galeaspida Osteostraci Pteraspida Thelodonti Anaspida Pituriaspida If you have fossils of any of those groups, it would be great to show them to the forum (and to me, I'm very interested as to what people have!) I just added Placoderms to this thread Looks like Ostracoderms are rare in the forum too, so Placoderms should heat this place up a bit Edited December 4, 2012 by Sinopaleus Link to comment Share on other sites More sharing options...
Sinopaleus Posted December 4, 2012 Author Share Posted December 4, 2012 Alright, I'll start off with all I have of Ostracodermi... Here's a shell missing the back portion, but still distinctly recognizable. Polybranchiaspis yunnanensis (Galeaspida), Early Devonian, Qujing, Yunnan, China Link to comment Share on other sites More sharing options...
Sinopaleus Posted December 4, 2012 Author Share Posted December 4, 2012 Laxaspis sp (Galeaspida), Early Devonian, Qujing, Yunnan, China Alright... Two Galeaspid fish is all I got for now... Show me whatcha got!! Link to comment Share on other sites More sharing options...
jpc Posted December 4, 2012 Share Posted December 4, 2012 Bothriolepis... is that an ostracoderm? I think so. Here is my Bothriolepis from central PA as it was found. It is still unprepped. 2 Link to comment Share on other sites More sharing options...
Sinopaleus Posted December 4, 2012 Author Share Posted December 4, 2012 Bothriolepis... is that an ostracoderm? I think so. Here is my Bothriolepis from central PA as it was found. It is still unprepped. Wow, that's really cool! Is that from Canada or from the USA? Bothriolepis is a Placoderm but it's nice to see one, thanks for sharing Link to comment Share on other sites More sharing options...
Sinopaleus Posted December 4, 2012 Author Share Posted December 4, 2012 Placoderms are now welcome in the thread! Link to comment Share on other sites More sharing options...
jpc Posted December 5, 2012 Share Posted December 5, 2012 well, darn. Placoderm, ostracoderm. My ignorance is shining through. They all look kinda the same to a guy who rarely dips into the Paleozoic. This one is from Pennsylvania in the USA. Link to comment Share on other sites More sharing options...
Sinopaleus Posted December 5, 2012 Author Share Posted December 5, 2012 well, darn. Placoderm, ostracoderm. My ignorance is shining through. They all look kinda the same to a guy who rarely dips into the Paleozoic. This one is from Pennsylvania in the USA. Very nice! Bothriolepis is a world renown placoderm, coming from many devonian formations across the continents. It's my first time seeing one from Pennslyvania though Link to comment Share on other sites More sharing options...
Ramo Posted December 5, 2012 Share Posted December 5, 2012 Now that the Placoderms are welcome I can contribute. Here it is a dorsal plate found in Kentucky. I left it in a field until I posted a couple pictures here. Some fossil forum members told me to get back there and pick that thing up, so I did!! (These are pictures I took in the hotel room shortly after going back to get it. I need to get some better photos) 1 For one species to mourn the death of another is a new thing under the sun. -Aldo Leopold Link to comment Share on other sites More sharing options...
Sinopaleus Posted December 5, 2012 Author Share Posted December 5, 2012 Now that the Placoderms are welcome I can contribute. Here it is a dorsal plate found in Kentucky. I left it in a field until I posted a couple pictures here. Some fossil forum members told me to get back there and pick that thing up, so I did!! (These are pictures I took in the hotel room shortly after going back to get it. I need to get some better photos) Oh wow! Do you know what species? Titanichthys maybe? That's a huge plate! Link to comment Share on other sites More sharing options...
pleecan Posted December 5, 2012 Share Posted December 5, 2012 Nice topic! http://oldasthehills.proboards.com/index.cgi?board=vertebrates&action=display&thread=226 http://oldasthehills.proboards.com/index.cgi?board=vertebrates&action=display&thread=312 http://oldasthehills.proboards.com/index.cgi?board=vertebrates&action=display&thread=310 Link to comment Share on other sites More sharing options...
Sinopaleus Posted December 5, 2012 Author Share Posted December 5, 2012 Nice topic! http://oldasthehills...play&thread=226 http://oldasthehills...play&thread=312 http://oldasthehills...play&thread=310 Thanks Peter Those links arent working though Link to comment Share on other sites More sharing options...
Auspex Posted December 5, 2012 Share Posted December 5, 2012 Thanks Peter Those links arent working though They're good for me. "There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant “Try to learn something about everything and everything about something.” - Thomas Henry Huxley >Paleontology is an evolving science. >May your wonders never cease! Link to comment Share on other sites More sharing options...
Sinopaleus Posted December 5, 2012 Author Share Posted December 5, 2012 They're good for me. Hmm, maybe because I'm a guest... I'll have to become a member then see it Link to comment Share on other sites More sharing options...
Ramo Posted December 5, 2012 Share Posted December 5, 2012 Not really sure as to species. If anyone wants to take a stab at it, I'd love to know. 1 For one species to mourn the death of another is a new thing under the sun. -Aldo Leopold Link to comment Share on other sites More sharing options...
pleecan Posted December 5, 2012 Share Posted December 5, 2012 Hmm, maybe because I'm a guest... I'll have to become a member then see it You don't need to be a member to see the pics Henry...may be your internet security setting is set too high? Link to comment Share on other sites More sharing options...
Sinopaleus Posted December 23, 2012 Author Share Posted December 23, 2012 Just got another Ostracoderm fossil, this time consisting of two ostracoderms, one from the Osteostraci, and the other from Pteraspiformes Stensiopelta pustulata & Podolaspis lerichei Devonian Old Red fm, Dneister Srs, Ternopil, Ukraine Stensiopelta pustulata head shield Podolaspis lerichei head shield 1 Link to comment Share on other sites More sharing options...
pleecan Posted December 23, 2012 Share Posted December 23, 2012 Nice collection Henry! Link to comment Share on other sites More sharing options...
nils Posted November 13, 2013 Share Posted November 13, 2013 Here are some pieces of fish from the Eifel, Germany I showed this one before. I contacted Prof. Lukševičs from University of Latvia. He confirmed me, that this is the trunk armor of an asterolepid antiarch. The specimen shows some affinities to Byssacanthus. Rodert-Formation, Givetian This is the left anterior-ventrolateral-plate of an Antiarch; Grossaspis carinata SCHLÜTER Ahbach-Formation, Givetian Mediodorsal-plate of an Arthrodira, maybe Anomalichthys ingens (V.KOENEN, 1883) Frasnian unknown tooth-plate. A similar looking tooth was reported 1847 by Hermann von Meyer, he named it Typodus glaber. I don't know, what happened to this genus, i couldn't find it in recent literature. Lower tooth-plate of a Ptyctodontid, Rhynchodus sp. Loogh-Formation, Givetian Cheers, Nils 1 Link to comment Share on other sites More sharing options...
Sinopaleus Posted November 13, 2013 Author Share Posted November 13, 2013 Here are some pieces of fish from the Eifel, Germany L 051.jpg I showed this one before. I contacted Prof. Lukševičs from University of Latvia. He confirmed me, that this is the trunk armor of an asterolepid antiarch. The specimen shows some affinities to Byssacanthus. Rodert-Formation, Givetian placodermi_grossaspis_carinata_schlueter_20130420_1353614754.jpg This is the left anterior-ventrolateral-plate of an Antiarch; Grossaspis carinata SCHLÜTER Ahbach-Formation, Givetian L 018.jpg Mediodorsal-plate of an Arthrodira, maybe Anomalichthys ingens (V.KOENEN, 1883) Frasnian L 003.JPG unknown tooth-plate. A similar looking tooth was reported 1847 by Hermann von Meyer, he named it Typodus glaber. I don't know, what happened to this genus, i couldn't find it in recent literature. L 012.jpg Lower tooth-plate of a Ptyctodontid, Rhynchodus sp. Loogh-Formation, Givetian Cheers, Nils Very nice, Nils! Thanks for sharing! Have there been any complete antiarchs discovered in Eifel? Link to comment Share on other sites More sharing options...
Sinopaleus Posted November 13, 2013 Author Share Posted November 13, 2013 (edited) That reminds me, I seemed to have forgotten to update.. Here is a 95% complete, 3-D inflated helmet of a Laxaspis qujingensis! Laxaspis qujingensis (Galeaspid) Early Devonian Liaojiaoshan, Qujing, Yunnan, China And here we have a partial helmet of a rarer galeaspid ostracoderm, Nanpanaspis, whose complete helmet resembles a christmas tree Nanpanaspis microculus (Galeaspid) Early Devonian Liaojiaoshan, Qujing, Yunnan, China And for a more famous devonian placoderm, a Bothriolepid. This is an impression of the shell of the Bothriolepid that is preserved along side a fang from an apex predatory fish, which is still yet unknown. Bothriolepid (Bothriolepis sinensis ?) Middle Devonian B. sinensis zone, Wuding, Yunnan, China And last but not least, a helmet of a new galeaspid that is yet unknown. It is preserved ventral-side up and the helmet resembles a comet (with it's tail). There are no eye sockets detected so far from this type of galeaspid, which adds to the assumption that this fish itself is distinct enough to be in a completely new clade of galeaspids! UNID Galeaspid Early Devonian Miandian Reservoir, Qujing, Yunnan, China I'll be anticipating lots of good looking shelled-fish (not shellfish or selfies) in the future for this thread! Edited November 13, 2013 by Sinopaleus Link to comment Share on other sites More sharing options...
nils Posted November 14, 2013 Share Posted November 14, 2013 Hello Henry! Thanks for your comment Your Laxaspis-Helmet is very cool I don´t know, if there exist any complete specimen from the Eifel. Unfortunately there are almost only scattered bones and pieces of the armour. In the middle devonian, the only species which can be found relatively complete is Gerdalepis. But these finds are very rare. Here is one, incomplete specimen from the Ahbach-Formation, Givetian. It´s the trunk armor, the headshield is missing. Its size is about 70mm length and 70mm high. Gerdalepis rhenana (BEYRICH) Here are a few pieces from the lower devonian of Waxweiler, Germany They're all undetermined.. Cheers, Nils Link to comment Share on other sites More sharing options...
willsquish Posted August 10, 2014 Share Posted August 10, 2014 A couple pictures with different lighting of a Tolypelepid fish I found in the Eramosa formation on the Bruce Peninsula, Ontario, Canada. Link to comment Share on other sites More sharing options...
Fossildude19 Posted August 10, 2014 Share Posted August 10, 2014 A couple pictures with different lighting of a Tolypelepid fish I found in the Eramosa formation on the Bruce Peninsula, Ontario, Canada. P7205905.JPGP7205907.JPG Wow! Nice and rare find! Thanks for posting it. 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...
Sinopaleus Posted March 26, 2020 Author Share Posted March 26, 2020 On 11/14/2013 at 7:42 AM, nils said: Hello Henry! Thanks for your comment Your Laxaspis-Helmet is very cool I don´t know, if there exist any complete specimen from the Eifel. Unfortunately there are almost only scattered bones and pieces of the armour. In the middle devonian, the only species which can be found relatively complete is Gerdalepis. But these finds are very rare. Here is one, incomplete specimen from the Ahbach-Formation, Givetian. It´s the trunk armor, the headshield is missing. Its size is about 70mm length and 70mm high. Gerdalepis rhenana (BEYRICH) Here are a few pieces from the lower devonian of Waxweiler, Germany They're all undetermined.. Cheers, Nils Nils, these are very cool! I especially love the Gerdalepis and what appears to be a pteraspid dorsal disc Link to comment Share on other sites More sharing options...
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