RAlves Posted August 7, 2020 Share Posted August 7, 2020 Hi, Found this little fossil the other day and can't tell what is it. Does someone know? Location: Cascais, Portugal Thanks for the help, Ricardo 1 Link to comment Share on other sites More sharing options...
GeschWhat Posted August 7, 2020 Share Posted August 7, 2020 It looks like a tooth plate (ray?) to me, but best wait for the experts. 1 Lori www.areallycrappystory.com/fossils www.facebook.com/fossilpoo Link to comment Share on other sites More sharing options...
Rockwood Posted August 7, 2020 Share Posted August 7, 2020 1 hour ago, GeschWhat said: (ray?) or something in the chimerid line ? 1 Link to comment Share on other sites More sharing options...
RAlves Posted August 8, 2020 Author Share Posted August 8, 2020 13 hours ago, GeschWhat said: It looks like a tooth plate (ray?) to me, but best wait for the experts. Could be, but the coloration puzzles me. Thanks Link to comment Share on other sites More sharing options...
Rockwood Posted August 8, 2020 Share Posted August 8, 2020 1 hour ago, RAlves said: Could be, but the coloration puzzles me. Thanks Could you expand on why it's a problem ? Color variation is usually an expected occurrence in most situations. Link to comment Share on other sites More sharing options...
RAlves Posted August 8, 2020 Author Share Posted August 8, 2020 I mean the color variation resembles more a fish scale than a tooth plate. Could this be a Lepidotes fish scale? There are some similarities with this ones: https://www.jurassic-dreams.com/products/03307-collector-grade-lepidotes-pankowskii-ganoid-scale-from-kem-kem-basin-fossil-for-sale https://www.fossilera.com/fossils/1-5-fossil-gar-fish-scale-cretaceous--2 Link to comment Share on other sites More sharing options...
Rockwood Posted August 8, 2020 Share Posted August 8, 2020 I make no claim to be an expert on these, but my instinct is no. I think the tooth like texture trumps the coloration. Link to comment Share on other sites More sharing options...
Al Dente Posted August 8, 2020 Share Posted August 8, 2020 Do you know the age? Link to comment Share on other sites More sharing options...
RAlves Posted August 8, 2020 Author Share Posted August 8, 2020 1 hour ago, Al Dente said: Do you know the age? I believe is from the Cretaceous Link to comment Share on other sites More sharing options...
RAlves Posted August 8, 2020 Author Share Posted August 8, 2020 1 hour ago, Rockwood said: I make no claim to be an expert on these, but my instinct is no. I think the tooth like texture trumps the coloration. Thanks for the input! Link to comment Share on other sites More sharing options...
Fossildude19 Posted August 8, 2020 Share Posted August 8, 2020 Looks like a crushing tooth. @jdp @Archie 4 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...
JohnJ Posted August 8, 2020 Share Posted August 8, 2020 Possibly a large pycnodont tooth. 3 The human mind has the ability to believe anything is true. - JJ Link to comment Share on other sites More sharing options...
jdp Posted August 8, 2020 Share Posted August 8, 2020 Weird. If that was Paleozoic, I'd say it is a stem-chimaera of some sort and not lose any sleep over it. This looks a bit more like a ray-finned fish because of the shape of the base, but the enamel and dentine texture is definitely weird for an actinopterygian. I think I'd agree that this is probably pycnodontiform, but that's a weird tooth for sure. 1 Link to comment Share on other sites More sharing options...
TqB Posted August 8, 2020 Share Posted August 8, 2020 (edited) Looks like or close to an Asteracanthus tooth (hybodont). I've seen Jurassic ones but apparently the range is Devonian to Cretaceous. (The OP says it's Cretaceous.) Edited August 8, 2020 by TqB 2 Tarquin Link to comment Share on other sites More sharing options...
RAlves Posted August 8, 2020 Author Share Posted August 8, 2020 Thank you all for the help, much appreciated! Link to comment Share on other sites More sharing options...
Archie Posted August 10, 2020 Share Posted August 10, 2020 Lovely tooth, it's very similar to Asteracanthus magnus from the British Jurassic. 2 Link to comment Share on other sites More sharing options...
Archie Posted August 10, 2020 Share Posted August 10, 2020 Heres one from the Bathonian of Lincolnshire for comparison. 6 Link to comment Share on other sites More sharing options...
RAlves Posted August 11, 2020 Author Share Posted August 11, 2020 Wow looks pretty similar!! Amazing Link to comment Share on other sites More sharing options...
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