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Hi! I recently saw a post about regurgitated bones and was wondering how to tell. These pieces are from North Sulphuric River, and very worn. Planning to make a little stand for these and would like to know for the description.

Hi all, I was wondering if anyone could help me with this tooth... first, I was wondering if anyone could I.D it, it appears to have a cusp, so I’d say no to megalodon, so I’d guess either an Angustidens or Auriculatus... second, I was wondering if you guys think this is just a worn tooth that was in the river for a while, or if it was digested, I saw one for sale that looked similar and said it was digested, so it got me wondering, and I figured it was worth it to at least check on the forum. TIA!

Hi Folks, Recently I read about "digested teeth". This is in regards to teeth from prey animals that have been consumed by a predator and then excreted later. One example would be whale teeth eaten by a megalodon. Does anyone have any photos of digested teeth, or any knowledge to share on how to identify a suspected specimen of this type? Thanks in advance! MikeG

Ever now and then while looking through matrix for small finds I get a discoloured / degraded shark tooth. this preservation is actually quite rare in the quarry My theory is that this is caused by the shark swallowing the tooth as it is shed when eating. Then the sharks stomach acids start to eat into the enamel causing the damage. The layer I get the teeth out of was laid down in the cretaceous and has not been reworked since then being a single thin undulating layer in a quarry. I do find the occasional small bit of bone in a similar condition but not very often, hence the digested theory. These teeth are found by digging down to a specific layer so the discolouration is not caused by surface bleaching. thoughts or any other theories welcome as these are a bit of an enigma. Tooth on the left is normal preservation and the white / black tooth on the right is the discoloured one. These have been removed from the matrix by softening the matrix with tap water and a little mechanical scratching only. Mike D'Arcy