Pica Posted June 25, 2014 Share Posted June 25, 2014 Hi everyone, hope you're all collecting like mad in the sun. So good to get out there again. One benefit of the weather in the UK is the exposure of fossils. I revisited an old haunt to descover some nice pieces previously hidden under inches of sticky clay and mud. Here's one from today, I think it's a shark tooth but no idea from which shark. Location: Peterborough, Callovian UK Any ID help much apreciated as always Apologies for the poor pics, this is 50mm long and 12mm at its widest thanks so much Link to comment Share on other sites More sharing options...
fossilized6s Posted June 25, 2014 Share Posted June 25, 2014 It almost looks like a dermal plate of some kind. But honestly i have no clue on this..... Neat looking though. ~Charlie~ "There are those that look at things the way they are, and ask why.....i dream of things that never were, and ask why not?" ~RFK ->Get your Mosasaur print ->How to spot a fake Trilobite ->How to identify a CONCRETION from a DINOSAUR EGG Link to comment Share on other sites More sharing options...
Pica Posted June 25, 2014 Author Share Posted June 25, 2014 Thanks, I thought it was a fish scale of some kind as it's from a marine bed but it's not... Link to comment Share on other sites More sharing options...
Auspex Posted June 25, 2014 Share Posted June 25, 2014 Asteracanthus magnus, perhaps? Images: LINK 1 "There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant “Try to learn something about everything and everything about something.” - Thomas Henry Huxley >Paleontology is an evolving science. >May your wonders never cease! Link to comment Share on other sites More sharing options...
Kosmoceras Posted June 25, 2014 Share Posted June 25, 2014 I agree with Auspex - an Asteracanthus of some sort. 1 Link to comment Share on other sites More sharing options...
fossilized6s Posted June 25, 2014 Share Posted June 25, 2014 Looks like it to me also. I've learned something new. ~Charlie~ "There are those that look at things the way they are, and ask why.....i dream of things that never were, and ask why not?" ~RFK ->Get your Mosasaur print ->How to spot a fake Trilobite ->How to identify a CONCRETION from a DINOSAUR EGG Link to comment Share on other sites More sharing options...
Pica Posted June 25, 2014 Author Share Posted June 25, 2014 Thanks Auspex and Kosmoceras, that's good enough for me. Asteracanthus it is. Good work, I knew I could count on you! Some jaw pieces on their way.... Link to comment Share on other sites More sharing options...
John Hamilton Posted June 25, 2014 Share Posted June 25, 2014 From the side view there appears to be a transverse ridge on the crown so I was thinking Heterodontus until I saw the size. 1 Link to comment Share on other sites More sharing options...
Pica Posted June 25, 2014 Author Share Posted June 25, 2014 Thanks John, yes, it's a desiccated slug of a tooth! Link to comment Share on other sites More sharing options...
siteseer Posted June 30, 2014 Share Posted June 30, 2014 (edited) Some of us talked about Asteracanthus not long ago: http://www.thefossilforum.com/index.php?/topic/37570-please-help-losing-sleep-shark-tooth-idneeded/?hl=asteracanthus There's a helpful link to a PDF you should have in that thread. I think your tooth is either A. magnus or A. medius. Both species have very similar teeth except in the anteriors. The odds favor siding with A. magnus because it is common and A. medius is quite rare (documented only from a dentition and one isolated tooth but perhaps with unrecognized specimens scattered across private and public collections). Edited June 30, 2014 by siteseer 1 Link to comment Share on other sites More sharing options...
Pica Posted June 30, 2014 Author Share Posted June 30, 2014 thanks Siteseer. That document is really informative. I have a couple of fin spine fragments from the exact same location that may help with the ID....apologies for the poor quality. Many thanks again Link to comment Share on other sites More sharing options...
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