Napoleon North Posted March 15, 2017 Share Posted March 15, 2017 Hi This is jellyfish fossil? Age: Cretaceous , Campanian Location: Southern Poland Link to comment Share on other sites More sharing options...
Fossildude19 Posted March 15, 2017 Share Posted March 15, 2017 Maybe a rudist? 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...
jpc Posted March 15, 2017 Share Posted March 15, 2017 cross section of something shelly is my guess. certainly not a jellyfish. 1 Link to comment Share on other sites More sharing options...
EMP Posted March 15, 2017 Share Posted March 15, 2017 Maaaayyyybe. Most jellyfish fossils are nothing more than faint mineral stains or slight depressions/elevations in the rock, so it's not impossible. Better pictures would help, but my best guesses other than jellyfish are crinoid cross section, coral cross section, or a rudist. Link to comment Share on other sites More sharing options...
Fossildude19 Posted March 16, 2017 Share Posted March 16, 2017 6 hours ago, EMP said: Maaaayyyybe. Most jellyfish fossils are nothing more than faint mineral stains or slight depressions/elevations in the rock, so it's not impossible. Better pictures would help, but my best guesses other than jellyfish are crinoid cross section, coral cross section, or a rudist. I highly doubt jellyfish. 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...
-Andy- Posted March 16, 2017 Share Posted March 16, 2017 I can't tell what it is either, but I am quite certain that's not a jellyfish as I see hard parts on that fossil. Looking forward to meeting my fellow Singaporean collectors! Do PM me if you are a Singaporean, or an overseas fossil-collector coming here for a holiday! Link to comment Share on other sites More sharing options...
abyssunder Posted March 18, 2017 Share Posted March 18, 2017 It looks pretty close to this type of sponge: link to source 4 " We are not separate and independent entities, but like links in a chain, and we could not by any means be what we are without those who went before us and showed us the way. " Thomas Mann My Library Link to comment Share on other sites More sharing options...
EMP Posted March 18, 2017 Share Posted March 18, 2017 I'm not saying it is jellyfish, just that mineral stains like that are how they are commonly preserved. Unless it isn't a mineral stain? Link to comment Share on other sites More sharing options...
doushantuo Posted March 18, 2017 Share Posted March 18, 2017 younglished.pdf No fossilized scyphozoan/medusa,I think. Link to comment Share on other sites More sharing options...
Fossildude19 Posted March 18, 2017 Share Posted March 18, 2017 8 hours ago, EMP said: I'm not saying it is jellyfish, just that mineral stains like that are how they are commonly preserved. Unless it isn't a mineral stain? I don't think it's a mineral stain - looks like shell-like material embedded in the rock. Mineral stains are usually much more amorphous, ... and not so detailed. It's also obviously quite worn. @abyssunder's ID seems like a close possibility. 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...
EMP Posted March 18, 2017 Share Posted March 18, 2017 Hmm, yeah on second look I think you're right. My guess is a shell. Link to comment Share on other sites More sharing options...
abyssunder Posted March 19, 2017 Share Posted March 19, 2017 I could be wrong, but try to compare the patterns. Sponge embedded in matrix would be my thought. (Other comparable patterns?) " We are not separate and independent entities, but like links in a chain, and we could not by any means be what we are without those who went before us and showed us the way. " Thomas Mann My Library Link to comment Share on other sites More sharing options...
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