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Small marine reptile bone found in Big Brook, NJ


TRexEliot

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I found this small and delicate, nearly intact marine reptile bone in Big Brook yesterday, and I'm wondering if anyone can identify it. The bone is just under an inch in length.20240423_104252.thumb.jpg.ff44afa5c0c8a760b9ace9abea5e7a38.jpg20240423_104301.thumb.jpg.a9c6143117d6f197f554170d954f388f.jpg

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Sorry, ... I've got nothing. 

    Tim    -  VETERAN SHALE SPLITTER

   MOTM.png.61350469b02f439fd4d5d77c2c69da85.png      PaleoPartner.png.30c01982e09b0cc0b7d9d6a7a21f56c6.png.a600039856933851eeea617ca3f2d15f.png     Postmaster1.jpg.900efa599049929531fa81981f028e24.jpg    VFOTM.png.f1b09c78bf88298b009b0da14ef44cf0.png  VFOTM  --- APRIL - 2015  

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"In every walk with nature one receives far more than he seeks."

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@pachy-pleuro-whatnot-odon, Alex, what do you think?

Best Regards,

Jan

Try to learn something about everything and everything about something

Thomas Henry Huxley

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All I can say is that 1) this is neither mosasaur nor plesiosaur; 2) this is a long bone of some kind; 3) which is not a phalanx and 4) not a femur (due to lack of femoral head); 5) likely not from the lower arm or lower leg either; and 5) that derives from an aquatic reptile for the flattening of the bone on one side. Turtle, as @M Harvey suggests, would therefore not be a bad guess, especially not when comparing to the below examples of the humeri of a snapping turtle and a box turtle (source 1 and source 2):

 

Snapping-Turtle-Humerus.thumb.jpg.b4ecc85d687ac526fc0c516cac18055d.jpgBox-Turtle-Humerus.thumb.jpg.a01832a8c0d7b2c591fc03ccb92d7c14.jpg

 

Turtles really aren't my area of expertise, however, so I'm calling in some more knowledgeable members to see if they can confirm this and, maybe even, narrow it down a bit further: @Al Dente @Harry Pristis @Shellseeker

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'There's nothing like millions of years of really frustrating trial and error to give a species moral fibre and, in some cases, backbone' -- Terry Pratchett

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@Tidgy's Dad, if he is not brumating any more?

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Try to learn something about everything and everything about something

Thomas Henry Huxley

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I was going to say almost the same as Carl - " a turtley vibe", but I am not quite sure which bone it could be if that is the case. 

Bit woozy after my brumation, perhaps.

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Life's Good!

Tortoise Friend.

MOTM.png.61350469b02f439fd4d5d77c2c69da85.png.a47e14d65deb3f8b242019b3a81d8160-1.png.60b8b8c07f6fa194511f8b7cfb7cc190.png

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@Mahnmut Turtle tibia seems very promising! I'm far from an expert, but this looks like the best match so far.

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