BenK Posted April 20, 2018 Share Posted April 20, 2018 Is this a fragment of a nautiloid cephalopod? It is quite large. Found in a limestone quarry. Thanks! Link to comment Share on other sites More sharing options...
BenK Posted April 20, 2018 Author Share Posted April 20, 2018 Link to comment Share on other sites More sharing options...
MeargleSchmeargl Posted April 20, 2018 Share Posted April 20, 2018 What is the formation the quarry delves into? Location of the finds? This looks more like orthoceras than anything. Every single fossil you see is a miracle set in stone, and should be treated as such. Link to comment Share on other sites More sharing options...
Fossildude19 Posted April 20, 2018 Share Posted April 20, 2018 Orthocone cephalopod. Probably not Orthoceras. Where (County, state?) was this found? 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...
BenK Posted April 20, 2018 Author Share Posted April 20, 2018 Eastern Missouri. Maybe Kimmswick formation but will have to clarify that. Link to comment Share on other sites More sharing options...
Fossildude19 Posted April 20, 2018 Share Posted April 20, 2018 Eastern Missouri covers a big area. Check this geologic map to see what age the sediments may be. 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...
MeargleSchmeargl Posted April 20, 2018 Share Posted April 20, 2018 10 minutes ago, Fossildude19 said: Orthocone cephalopod. Probably not Orthoceras. Where (County, state?) was this found? Orthocone, Orthoceras, what's the difference? Every single fossil you see is a miracle set in stone, and should be treated as such. Link to comment Share on other sites More sharing options...
Fossildude19 Posted April 20, 2018 Share Posted April 20, 2018 5 minutes ago, MeargleSchmeargl said: Orthocone, Orthoceras, what's the difference? Click the Blue link. 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...
BenK Posted April 20, 2018 Author Share Posted April 20, 2018 It is 100 percent Ordovician I'll say that much. I own some land in Ste. Gen county that is right on the Ordo/Miss line so I find some decent things there from time to time. Link to comment Share on other sites More sharing options...
MeargleSchmeargl Posted April 20, 2018 Share Posted April 20, 2018 5 minutes ago, Fossildude19 said: Click the Blue link. Oh, so there was a naming change when they looked at Orthoceras and body structures of other orthocones, and they had differences in things like the siphuncle. Orthoceras itself is a genus, rather than being a unifying group. Duly noted! Every single fossil you see is a miracle set in stone, and should be treated as such. Link to comment Share on other sites More sharing options...
Rockwood Posted April 20, 2018 Share Posted April 20, 2018 11 minutes ago, MeargleSchmeargl said: like the siphuncle. Any angle show evidence ? The top might be the best bet. Link to comment Share on other sites More sharing options...
BenK Posted April 22, 2018 Author Share Posted April 22, 2018 Thanks for all your information everyone! I see this is a very helpful site already. I will get some top pics posted this evening. Link to comment Share on other sites More sharing options...
doushantuo Posted April 22, 2018 Share Posted April 22, 2018 "orthocone" is a sort of shorthand morphological descriptor. (greek for "straight cone") as regards siphuncular structures:a recent baseline Link to comment Share on other sites More sharing options...
Tidgy's Dad Posted April 24, 2018 Share Posted April 24, 2018 Quite a nice orthocone piece Life's Good! Tortoise Friend. Link to comment Share on other sites More sharing options...
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