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A.C.'s Devonian Pennsylvania

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A.C.'s Devonian Pennsylvania

All personal finds from the Mahantango of PA. Feel free to comment if any IDs seem wrong.

  • Album created by A.C.
  • Updated
  • 13 images
  • 110 views

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  • Image Comments

    • Isurus desori

      By bthemoose · Posted

      @Fin Lover, this ID is based on input that @siteseer provided here: 
       
    • Isurus desori

      By Fin Lover · Posted

      Based on the enamel "shelf" on the labial side, I would have IDed this as a retroflexus.  May I ask what features indicate desori?  
    • Unidentified Possibly Cochliodus

      By Samurai · Posted

      Oh! I am so sorry for the late reply as I never got the notification. Sadly I have not, besides a familial (mostly superficial) resemblence to the modern ratfish (probably from the same diet) I have not gotten any clear answers. 

       
       
      Jokes aside, a true Id may never come unless far into the future. I still have hope one day someone can help with this ID. 
    • Arrowhead 3.16.24

      By C2fossils · Posted

      Nice Point! I really like the color of the chert!
    • I. retroflexus 4.12.24

      By TRout · Posted

      Such a pretty tooth! I love the colors and the cusplets
    • My first echinoid 7.27.23

      By Balance · Posted

      Bucket list… only half of one so far. That’s just lovely. It’s absolutely still, “delicate”. I don’t know if that makes sense. Of course it’s delicate, but I just mean its vibe is still contained. The broken pieces, even if large and visibly pretty, are missing the delicacy of a sand dollar. So they feel like a piece of fossil instead of what they are. 
       
      Sorry for rambling. Currently looking through your awesome pictures to try and find a new tooth I found. 
       
      Jp
    • I. retroflexus 4.12.24

      By Fin Lover · Posted

      I enjoy finding these teeth because every one of them has had a different variation of the cusps.
    • I. retroflexus 4.12.24

      By Notidanodon · Posted

      Interesting tooth, cusps remind me of araloselachus from germany
    • I. retroflexus 4.12.24

      By Jaybot · Posted

      Beautiful tooth!  I really like the contrast between the root/enamel.
       
      Also, great photography throughout your album
       
    • Great White Shark Tooth (Neonate)

      By ThePhysicist · Posted

      The cusplets are present in all great whites, they are an ontogenetic feature and not geographically restricted. Nice tooth, it looks like a juvenile lower lateral. See below for an idea of the neonate dentition.

      ^ Tomita, Taketeru et al. “Dental ontogeny of a white shark embryo.” Journal of morphology vol. 278,2 (2017): 215-227. doi:10.1002/jmor.20630
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