ckmerlin Posted January 16, 2012 Share Posted January 16, 2012 Im not sure what this is but looks like Shrimp Telson impression , but could be anything from fish material to plant ( although very unlikely to be plant as this a marine sediment from the marine bed) Mid carboniferous "A man who stares at a rock must have a lot on his mind... or nothing at all' Link to comment Share on other sites More sharing options...
Indy Posted January 16, 2012 Share Posted January 16, 2012 Oh, this is interesting Cropped and edited to help these old eyes Flash from the Past (Show Us Your Fossils)MAPS Fossil Show Link to comment Share on other sites More sharing options...
pleecan Posted January 16, 2012 Share Posted January 16, 2012 Shrimp telson .... ie phyllocarid is generally 3 prongs and triangular wedge shaped... from the pics, I don't think it is a shrimp telson.... mind you I have only seen phyllocarids up to Silurian period and nothiing beyond that time period..... Link to comment Share on other sites More sharing options...
araucaria1959 Posted January 16, 2012 Share Posted January 16, 2012 Phyllocarids are still extant (about 25 species) and fossil taxa younger than silurian actually exist (e.g., Nahecaris in the lower devonian, Ceratiocaris until the permian). However, I don't think that this specimen is a part of a phyllocarid. araucaria1959 Link to comment Share on other sites More sharing options...
Missourian Posted January 17, 2012 Share Posted January 17, 2012 There appears to be faint segmentation. Could it be a tiny orthocone? Context is critical. Link to comment Share on other sites More sharing options...
TqB Posted January 17, 2012 Share Posted January 17, 2012 (edited) There appears to be faint segmentation. Could it be a tiny orthocone? I agree - perhaps retake the first photo with low angle light from one end? Edited January 17, 2012 by TqB Tarquin Link to comment Share on other sites More sharing options...
Plax Posted January 17, 2012 Share Posted January 17, 2012 How far back do Belemnites go? Pic looks a bit like some Jurassic ones I've seen on slabs. Link to comment Share on other sites More sharing options...
paleozoicfish Posted January 17, 2012 Share Posted January 17, 2012 Shrimp telson .... ie phyllocarid is generally 3 prongs and triangular wedge shaped... from the pics, I don't think it is a shrimp telson.... mind you I have only seen phyllocarids up to Silurian period and nothiing beyond that time period..... Also, just as a side note: Phyllocarids are not shrimp. They are a bivalved arthropod superficially similar in some ways to shrimp. -PzF Link to comment Share on other sites More sharing options...
ckmerlin Posted January 17, 2012 Author Share Posted January 17, 2012 Hi all thanks for replies , Im going to take some better close up photos in the daylight when I am off, perhaps in the morning please bear with me if you dont see any until end of week though as Im doing a lot of overtime at work this week its more of an Impression of something than actual whatever it was "A man who stares at a rock must have a lot on his mind... or nothing at all' Link to comment Share on other sites More sharing options...
pleecan Posted January 17, 2012 Share Posted January 17, 2012 Also, just as a side note: Phyllocarids are not shrimp. They are a bivalved arthropod superficially similar in some ways to shrimp. -PzF Thanks PzF for the clarification. Link to comment Share on other sites More sharing options...
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