araucaria1959 Posted December 31, 2012 Share Posted December 31, 2012 Oh sorry, I overlooked your second sentence. However, I compared the specimen we are discussing here with your Lingulella, my own ones with pedicles, and some pics from literature. The specimen under discussion has a straight axis in the middle - a sort of "midline" - in its "tail". That is what I miss in the pedicle of linguliform brachiopods. Another problem is the transition between the putative brachiopod shell and the putative pedicle. It looks quite different. So I don't think it's a brachiopod. araucaria1959 Link to comment Share on other sites More sharing options...
Herb Posted January 1, 2013 Share Posted January 1, 2013 I don't know what it is, but I like it. "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...
Herb Posted January 1, 2013 Share Posted January 1, 2013 Barnacles go all the way back to the M.Cambrian, but they are most common in the Cenezoic. "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...
Theosmom Posted January 4, 2013 Share Posted January 4, 2013 Piranha, Thanks for posting that link. I had been using P. Van Roy's spelling of Plasiocystis and also failing to find anything online. I simply assumed he hadn't described it yet. I know that we have specimens from some of Lefebvre's quarries, and it does look (to me) like figure 2.2 from this paper. Link to comment Share on other sites More sharing options...
trilobiteruss Posted January 4, 2013 Author Share Posted January 4, 2013 Yes keep watching to see if any of us can find out what this odd fossil might be, sure is strange... Link to comment Share on other sites More sharing options...
John Posted February 9, 2021 Share Posted February 9, 2021 It's a species of the carpoid Plasiacystis. See: Prokop, R. J., & Petr, V. Á. C. L. A. V. (2003). Plasiacystis mobilis, gen. et sp. n., a strange “carpoid”(Echinodermata,? Homoiostelea: Soluta) in the Bohemian Ordovician (Czech Republic). Sbornik Narodniho Muzea, Serie B, Prirodni vedy, 59, 151-162. The "tail" is definitely odd, but the Czech specimens show that it is indeed a carpoid. “When you're riding in a time machine way far into the future, don't stick your elbow out the window, or it'll turn into a fossil.” - Jack Handy 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