Brian James Maguire Posted December 2, 2023 Share Posted December 2, 2023 Hi guys Found this in the Carboniferous limestone of the Malahide Formation, Dublin, Ireland. 6 Link to comment Share on other sites More sharing options...
Shellseeker Posted December 2, 2023 Share Posted December 2, 2023 Looks a little bit like a modern horn snail... hugely abundant in SW Florida... Thanks for sharing.... 3 The White Queen ".... in her youth she could believe "six impossible things before breakfast" Link to comment Share on other sites More sharing options...
Fossildude19 Posted December 2, 2023 Share Posted December 2, 2023 Beautiful gastropod, Brian! Lovely!! 1 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...
Shellseeker Posted December 2, 2023 Share Posted December 2, 2023 1 hour ago, Brian James Maguire said: Found this in the Carboniferous limestone of the Malahide Formation, Dublin, Ireland. Brian, I have cousins in County Limerick, and used to give ziploc bags of Florida shark teeth to their children on my visits. Before you joined this forum, I thought that fossils in Ireland were almost non _existent . You have changed my opinion for the better. Thanks Jack 1 2 The White Queen ".... in her youth she could believe "six impossible things before breakfast" Link to comment Share on other sites More sharing options...
Brian James Maguire Posted December 2, 2023 Author Share Posted December 2, 2023 Hey Jack ! Up until six months ago i was of the same opinion! Cant believe that there is such an abundance of fossils right on my doorstep, of course theres a lot of prep involved but its so worth it, glad you like 👍 1 1 Link to comment Share on other sites More sharing options...
ClearLake Posted December 2, 2023 Share Posted December 2, 2023 Very nice gastropod. Can we see a side view of it please? 1 Link to comment Share on other sites More sharing options...
TqB Posted December 2, 2023 Share Posted December 2, 2023 Lovely specimen. It looks planispiral. If so, I think it could be a nautiloid like no.3 here, Maccoyoceras wrightii. It's Courceyan to Asbian, Co. Cork, so the right age. (The others are different species of the same genus.) 6 1 1 Tarquin Link to comment Share on other sites More sharing options...
hemipristis Posted December 2, 2023 Share Posted December 2, 2023 That''s purty! 1 1 'Those who cannot remember the past are condemned to repeat it.' George Santayana Link to comment Share on other sites More sharing options...
FossilNerd Posted December 3, 2023 Share Posted December 3, 2023 Beautiful specimen. 1 The good thing about science is that it's true whether or not you believe in it. -Neil deGrasse Tyson Everyone you will ever meet knows something you don't. -Bill Nye (The Science Guy) Link to comment Share on other sites More sharing options...
sixgill pete Posted December 3, 2023 Share Posted December 3, 2023 That is a stunning specimen. Absolutely beautiful. Congratulations! That would have made my day. 1 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...
Brian James Maguire Posted December 3, 2023 Author Share Posted December 3, 2023 9 hours ago, TqB said: Lovely specimen. It looks planispiral. If so, I think it could be a nautiloid like no.3 here, Maccoyoceras wrightii. It's Courceyan to Asbian, Co. Cork, so the right age. (The others are different species of the same genus.) I actually think you could be right with nautiloid they look exactly like them i am still in the middle of prep , I will post when finished 4 Link to comment Share on other sites More sharing options...
Brian James Maguire Posted December 3, 2023 Author Share Posted December 3, 2023 9 hours ago, ClearLake said: Very nice gastropod. Can we see a side view of it please? Theres two of them one under the other 3 Link to comment Share on other sites More sharing options...
ClearLake Posted December 3, 2023 Share Posted December 3, 2023 Very interesting and the prep is progressing along nicely. I’m still a little torn on gastropod vs nautiloid. Maybe it’s just the preservation but I don't see any evidence of septae where the shells are broken or of a siphuncle. And the outer texture of the shell just looks more gastropody to me (which I realize is very subjective). But I’m not familiar with the fauna from that formation so maybe there are no gastropods that look like that. Just a thought. 2 1 1 Link to comment Share on other sites More sharing options...
Brian James Maguire Posted December 3, 2023 Author Share Posted December 3, 2023 33 minutes ago, ClearLake said: Very interesting and the prep is progressing along nicely. I’m still a little torn on gastropod vs nautiloid. Maybe it’s just the preservation but I don't see any evidence of septae where the shells are broken or of a siphuncle. And the outer texture of the shell just looks more gastropody to me (which I realize is very subjective). But I’m not familiar with the fauna from that formation so maybe there are no gastropods that look like that. Just a thought. Sometimes when prep is finished and it is polished it may reveal some finer detail 1 Link to comment Share on other sites More sharing options...
Brian James Maguire Posted December 3, 2023 Author Share Posted December 3, 2023 Prep a bit further on now , can anybody help with what type of shell fragment that is Link to comment Share on other sites More sharing options...
fifbrindacier Posted December 3, 2023 Share Posted December 3, 2023 Nice ! 1 "On ne voit bien que par le coeur, l'essentiel est invisible pour les yeux." (Antoine de Saint-Exupéry) "We only well see with the heart, the essential is invisible for the eyes." In memory of Doren Link to comment Share on other sites More sharing options...
fifbrindacier Posted December 3, 2023 Share Posted December 3, 2023 On 12/2/2023 at 9:42 AM, Brian James Maguire said: Hi guys Found this in the Carboniferous limestone of the Malahide Formation, Dublin, Ireland. Really nice ! 1 "On ne voit bien que par le coeur, l'essentiel est invisible pour les yeux." (Antoine de Saint-Exupéry) "We only well see with the heart, the essential is invisible for the eyes." In memory of Doren Link to comment Share on other sites More sharing options...
Brian James Maguire Posted December 3, 2023 Author Share Posted December 3, 2023 Prep is finished , hope we can solve the gastropod V nautiloid mystery and thanks so mush for all the replies 2 Link to comment Share on other sites More sharing options...
ClearLake Posted December 4, 2023 Share Posted December 4, 2023 1 hour ago, Brian James Maguire said: hope we can solve the gastropod V nautiloid mystery Not sure if we can, but I will add one last opinion. The nautiloid that @TqB offered looks like a very reasonable suggestion. I will offer a gastropod from the family Euomphalidae. Maybe something along the lines of Euomphalus or its relative Philoxene. See photo below out of the Treatise Part I (Gastropoda). Euomphalus is reported from the Carboniferous of Ireland but generally has a ridge or angulation on the upper part of the whorls which I will admit, I do not see in the specimen in question. But the spire is "depressed to slightly elevated" which fits with the one in question. There are dozens of species of this genus and the variability in pictures I have seen is quite wide. Philoxene looks a little more like it with more rounded whorls but is supposedly just from the Devonian. I had trouble finding any remotely recent publications dealing with the Carboniferous gastropods of Ireland, but I did find the 1844 publication below which shows some gastropods on Plate V that look vaguely like the one in question (and maybe some nautiloids too) but the print quality is so poor that I can not even read off the plate what the number is to match it up with a text description. So that's the best I can do, and I know that is not very definitive. We need an Irish Carboniferous Mollusk expert. Mike 1 1 Link to comment Share on other sites More sharing options...
Brian James Maguire Posted December 4, 2023 Author Share Posted December 4, 2023 3 hours ago, ClearLake said: Not sure if we can, but I will add one last opinion. The nautiloid that @TqB offered looks like a very reasonable suggestion. I will offer a gastropod from the family Euomphalidae. Maybe something along the lines of Euomphalus or its relative Philoxene. See photo below out of the Treatise Part I (Gastropoda). Euomphalus is reported from the Carboniferous of Ireland but generally has a ridge or angulation on the upper part of the whorls which I will admit, I do not see in the specimen in question. But the spire is "depressed to slightly elevated" which fits with the one in question. There are dozens of species of this genus and the variability in pictures I have seen is quite wide. Philoxene looks a little more like it with more rounded whorls but is supposedly just from the Devonian. I had trouble finding any remotely recent publications dealing with the Carboniferous gastropods of Ireland, but I did find the 1844 publication below which shows some gastropods on Plate V that look vaguely like the one in question (and maybe some nautiloids too) but the print quality is so poor that I can not even read off the plate what the number is to match it up with a text description. So that's the best I can do, and I know that is not very definitive. We need an Irish Carboniferous Mollusk expert. Mike Thank you mike for such a detailed reply, its a very difficult one to call, some great information there. 1 Link to comment Share on other sites More sharing options...
Brian James Maguire Posted December 4, 2023 Author Share Posted December 4, 2023 17 hours ago, ClearLake said: Not sure if we can, but I will add one last opinion. The nautiloid that @TqB offered looks like a very reasonable suggestion. I will offer a gastropod from the family Euomphalidae. Maybe something along the lines of Euomphalus or its relative Philoxene. See photo below out of the Treatise Part I (Gastropoda). Euomphalus is reported from the Carboniferous of Ireland but generally has a ridge or angulation on the upper part of the whorls which I will admit, I do not see in the specimen in question. But the spire is "depressed to slightly elevated" which fits with the one in question. There are dozens of species of this genus and the variability in pictures I have seen is quite wide. Philoxene looks a little more like it with more rounded whorls but is supposedly just from the Devonian. I had trouble finding any remotely recent publications dealing with the Carboniferous gastropods of Ireland, but I did find the 1844 publication below which shows some gastropods on Plate V that look vaguely like the one in question (and maybe some nautiloids too) but the print quality is so poor that I can not even read off the plate what the number is to match it up with a text description. So that's the best I can do, and I know that is not very definitive. We need an Irish Carboniferous Mollusk expert. Mike Hi mike 2a and 2b from your first pic looks identical to what i have and also after polishing there are no sign of either a septa or siphuncle , they should have shown up after final polish so im now leaning towards gastropod, again thank you for the time and to everyone who contributed, i have the book that you posted in your second pic and it is frustrating that we cant read the print from the plates 1 1 Link to comment Share on other sites More sharing options...
C2fossils Posted December 4, 2023 Share Posted December 4, 2023 Very nice mineralization on it, cool find! 1 Link to comment Share on other sites More sharing options...
Brian James Maguire Posted December 5, 2023 Author Share Posted December 5, 2023 On 12/4/2023 at 12:19 AM, ClearLake said: Not sure if we can, but I will add one last opinion. The nautiloid that @TqB offered looks like a very reasonable suggestion. I will offer a gastropod from the family Euomphalidae. Maybe something along the lines of Euomphalus or its relative Philoxene. See photo below out of the Treatise Part I (Gastropoda). Euomphalus is reported from the Carboniferous of Ireland but generally has a ridge or angulation on the upper part of the whorls which I will admit, I do not see in the specimen in question. But the spire is "depressed to slightly elevated" which fits with the one in question. There are dozens of species of this genus and the variability in pictures I have seen is quite wide. Philoxene looks a little more like it with more rounded whorls but is supposedly just from the Devonian. I had trouble finding any remotely recent publications dealing with the Carboniferous gastropods of Ireland, but I did find the 1844 publication below which shows some gastropods on Plate V that look vaguely like the one in question (and maybe some nautiloids too) but the print quality is so poor that I can not even read off the plate what the number is to match it up with a text description. So that's the best I can do, and I know that is not very definitive. We need an Irish Carboniferous Mollusk expert. Mike Hi mike i was reading further and this could easily be late devonian associated with the area i found this even though the predominant rock is Carboniferous limestone so philoxene could definitely be the closest contender for the ID Link to comment Share on other sites More sharing options...
ClearLake Posted December 6, 2023 Share Posted December 6, 2023 19 hours ago, Brian James Maguire said: could easily be late devonian associated with the area i found this even though the predominant rock is Carboniferous limestone so philoxene could definitely be the closest contender for the ID I should have pointed out earlier, the proper nomenclature for this is: Straparollus (Philoxene) Kayser 1889 As far as I can tell this is the most up to date nomenclature based on the Treatise and a couple of references cited in Fossilworks. I don't want the nomenclature police after me - haha!! There are way too many species within this genus(subgenus) for me to even think about that. Looking forward to your next find! 1 Link to comment Share on other sites More sharing options...
Brian James Maguire Posted December 6, 2023 Author Share Posted December 6, 2023 2 hours ago, ClearLake said: I should have pointed out earlier, the proper nomenclature for this is: Straparollus (Philoxene) Kayser 1889 As far as I can tell this is the most up to date nomenclature based on the Treatise and a couple of references cited in Fossilworks. I don't want the nomenclature police after me - haha!! There are way too many species within this genus(subgenus) for me to even think about that. Looking forward to your next find! My next find is being prepped as we speak and i have another little gem for you as a bonus 😄 1 Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now