DevBart Posted December 5, 2022 Share Posted December 5, 2022 Good day everyone, I was out over by the Ratone Plateau, not too far from the purgatory river, and came across these fungi like fossils. I have only heard that mushroom fossils were only found within amber but my father was thinking they were actual fungi fossils. What do you all think? They kind of look like the caps of mushrooms. Any help identifying what these are would be greatly appreciated. Thank you 6 Link to comment Share on other sites More sharing options...
digit Posted December 5, 2022 Share Posted December 5, 2022 No, so much cooler than fungi! These appear to be ptychodus shark teeth. https://en.wikipedia.org/wiki/Ptychodus Do a search for "ptychodus" here on the forum and you'll see many more examples. (BTW: Mushroom caps are 99% water and don't actually fossilize.) Cheers. -Ken 1 3 7 Link to comment Share on other sites More sharing options...
jpc Posted December 5, 2022 Share Posted December 5, 2022 yup...Ptychodus teeth. Nice ones, too. A shell-crushing Cretaceous shark. 2 Link to comment Share on other sites More sharing options...
digit Posted December 5, 2022 Share Posted December 5, 2022 Here's some good info to get you started: http://www.thefossilforum.com/index.php?/topic/14530-ptychodus-id-quick-guide/ http://www.thefossilforum.com/index.php?/topic/114515-prospecting-the-san-juan-basin/&do=findComment&comment=1371512 Cheers. -Ken 5 Link to comment Share on other sites More sharing options...
Tidgy's Dad Posted December 5, 2022 Share Posted December 5, 2022 Nice finds! 1 Life's Good! Tortoise Friend. Link to comment Share on other sites More sharing options...
abyssunder Posted December 5, 2022 Share Posted December 5, 2022 Congrats! 1 " We are not separate and independent entities, but like links in a chain, and we could not by any means be what we are without those who went before us and showed us the way. " Thomas Mann My Library Link to comment Share on other sites More sharing options...
DevBart Posted December 6, 2022 Author Share Posted December 6, 2022 Thanks everyone for your help and information and thank you for all the links. I will be learning about the ptychodus shark tonight. Take care and will reach out again if I find anything else. Link to comment Share on other sites More sharing options...
LSCHNELLE Posted December 6, 2022 Share Posted December 6, 2022 Looks like Ptychodus occidentalis with moderate crown height and bifurcating ridges. One is in very good condition! 1 Link to comment Share on other sites More sharing options...
Advantage Posted December 6, 2022 Share Posted December 6, 2022 Really good find. Link to comment Share on other sites More sharing options...
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