TqB Posted December 28, 2018 Share Posted December 28, 2018 I was surprised to see this specimen for auction and pleased to win it. It's Anguloserra thomasi, a rare tooth from an ophiocistioid echinoderm and comes from the same locality as the holotype described here (abstract only): Haude & Langenstrassen 1976. I've been interested in these since finding three similar specimens in the UK that took a while to identify - shown in the next post. It's preserved as an impression - most material in this matrix is decalcified. Carboniferous, upper Mississippian, Culm beds (equivalent of Brigantian and Arnsbergian beds in UK), Aprath, Germany. Scale in mm. Here's the holotype from the linked paper (a latex cast): 8 Tarquin Link to comment Share on other sites More sharing options...
TqB Posted December 28, 2018 Author Share Posted December 28, 2018 And here are the three I found in the UK, Brigantian of Co. Durham. The best one, showing two teeth, in a limestone hash plate (I showed this on its own a while back): (photographed just submerged in water which brings out the detail) (Scale - small divisions are mm) \ And two in a shale: 7 Tarquin Link to comment Share on other sites More sharing options...
Ludwigia Posted December 28, 2018 Share Posted December 28, 2018 Very interesting. Never heard of these before. Have you ever found the echinoids themselves? Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
Fossildude19 Posted December 28, 2018 Share Posted December 28, 2018 Great addition, Tarquin! My one thing new that I learned today. 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...
TqB Posted December 28, 2018 Author Share Posted December 28, 2018 Good overview of the amazing ophiocistioids here:http://echinoblog.blogspot.com/2012/08/ophiocistioids-weird-mystery-fossils.html And here's a reconstruction of the animal (from the cited paper in my first post, also in the overview), with a blow up of the ranks of teeth from its Aristotle's lantern equivalent: 6 Tarquin Link to comment Share on other sites More sharing options...
TqB Posted December 28, 2018 Author Share Posted December 28, 2018 @Ludwigia @Fossildude19 Roger & Tim, thanks for your interest! I'm hoping people might come up with some more of these - they may be more common than the literature suggests. Tarquin Link to comment Share on other sites More sharing options...
Pagurus Posted December 28, 2018 Share Posted December 28, 2018 Curiouser and curiouser. Thanks for posting this. Fascinating. Start the day with a smile and get it over with. Link to comment Share on other sites More sharing options...
TqB Posted December 28, 2018 Author Share Posted December 28, 2018 2 hours ago, Ludwigia said: Very interesting. Never heard of these before. Have you ever found the echinoids themselves? No, they're hyper rare - I've not come across any Carboniferous remains in the literature apart from the goniodonts. Ophiocistioidea seems to be a separate extinct class, same rank as echinoidea but both subphylum echinozoa. Tarquin Link to comment Share on other sites More sharing options...
Bobby Rico Posted December 28, 2018 Share Posted December 28, 2018 You do have an eye for the interesting and unusual Tarquin. Nice purchase indeed; Link to comment Share on other sites More sharing options...
doushantuo Posted December 28, 2018 Share Posted December 28, 2018 carboniferous or CAR_182_102_0489-0495.pdf accompanied by bivalves,fossil wood,trilobites,bryozoa ,brachiopods Ein Winkelzahn (Ophiocistioide)aus dem Unterkarbon von Nötsch/Kärnten Von Gunnar SCHRAUT Carinthia,182,JG 102 2 Link to comment Share on other sites More sharing options...
TqB Posted December 28, 2018 Author Share Posted December 28, 2018 6 minutes ago, doushantuo said: carboniferous Thanks, good paper - still just goniodonts though, no test. Tarquin Link to comment Share on other sites More sharing options...
Tidgy's Dad Posted December 28, 2018 Share Posted December 28, 2018 Fascinating and beautiful. Something aware of but have never found or seen in person. Thanks for sharing. Life's Good! Tortoise Friend. Link to comment Share on other sites More sharing options...
doushantuo Posted December 28, 2018 Share Posted December 28, 2018 4a/b:Volchovia image from G.Regnell: Echinoderms(Hydrophoridea/Ophiocistia)from the Ordovician of the Oslo Region(Upper Skiddavian 3 c beta) Norsk Geol.Tidskr,27(1946) that's originally: 1 Link to comment Share on other sites More sharing options...
Innocentx Posted December 28, 2018 Share Posted December 28, 2018 Another fantastic creature to understand. Thanks so much for showing this! I'm curious, what are the circular things here? (I put red dots next to some of them) "Journey through a universe ablaze with changes" Phil Ochs Link to comment Share on other sites More sharing options...
ricardo Posted December 28, 2018 Share Posted December 28, 2018 56 minutes ago, TqB said: Thanks, good paper - still just goniodonts though, no test. And this one A few pictures here Link to comment Share on other sites More sharing options...
TqB Posted December 28, 2018 Author Share Posted December 28, 2018 29 minutes ago, Innocentx said: Another fantastic creature to understand. Thanks so much for showing this! I'm curious, what are the circular things here? (I put red dots next to some of them) Thank you! They're air bubbles - I photographed it just submerged in water which greatly brings out the detail. 20 minutes ago, ricardo said: And this one A few pictures here Thank you - nice echinoid references but no ophiocistioids, which is what I meant when saying no tests known to me from the Carboniferous. 1 Tarquin Link to comment Share on other sites More sharing options...
TqB Posted December 28, 2018 Author Share Posted December 28, 2018 1 hour ago, Bobby Rico said: You do have an eye for the interesting and unusual Tarquin. Nice purchase indeed; Thanks, Bobby - saw my first one on bit of shale and couldn't work out what it was for a couple of years. 1 hour ago, Tidgy's Dad said: Fascinating and beautiful. Something aware of but have never found or seen in person. Thanks for sharing. Thanks, Adam - an accidental find in the first place but it's an eroding locality that I check often so always a chance for more. 1 hour ago, Pagurus said: Curiouser and curiouser. Thanks for posting this. Fascinating. Thank you. I do like bizarre echinoderms. (Who doesn't!) 2 Tarquin Link to comment Share on other sites More sharing options...
sixgill pete Posted December 28, 2018 Share Posted December 28, 2018 This is fascinating. As Tim, @Fossildude19 said, the one new thing I learned today. 1 Bulldozers and dirt Bulldozers and dirt behind the trailer, my desert Them red clay piles are heaven on earth I get my rocks off, bulldozers and dirt Patterson Hood; Drive-By Truckers May 2016 May 2012 Aug 2013, May 2016, Apr 2020 Oct 2022 Link to comment Share on other sites More sharing options...
ricardo Posted December 28, 2018 Share Posted December 28, 2018 3 hours ago, TqB said: Thank you! They're air bubbles - I photographed it just submerged in water which greatly brings out the detail. Thank you - nice echinoid references but no ophiocistioids, which is what I meant when saying no tests known to me from the Carboniferous. Of course! I was sleeping. One more great post. Thanks for it. 1 Link to comment Share on other sites More sharing options...
Innocentx Posted December 29, 2018 Share Posted December 29, 2018 On 12/28/2018 at 2:15 PM, TqB said: I photographed it just submerged in water which greatly brings out the detail. I've got to try this!!! "Journey through a universe ablaze with changes" Phil Ochs Link to comment Share on other sites More sharing options...
Max-fossils Posted December 30, 2018 Share Posted December 30, 2018 Very interesting Tarquin! Never would've known such a thing even existed if it weren't for this post. I personally like your first find (with the double teeth) better than your purchase. Max Derème "I feel an echo of the lightning each time I find a fossil. [...] That is why I am a hunter: to feel that bolt of lightning every day." - Mary Anning >< Remarkable Creatures, Tracy Chevalier Instagram: @world_of_fossils Link to comment Share on other sites More sharing options...
TqB Posted December 31, 2018 Author Share Posted December 31, 2018 12 hours ago, Max-fossils said: Very interesting Tarquin! Never would've known such a thing even existed if it weren't for this post. I personally like your first find (with the double teeth) better than your purchase. Thanks, Max! I'm with you there, that is the best preserved specimen. It's on a plate with scattered Archaeocidaris and Lepidesthes remains but I haven't been able to identify any other possible ophiocistioid parts which is a bit odd - maybe looking for the wrong things... 1 Tarquin Link to comment Share on other sites More sharing options...
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