chg057 Posted March 15, 2017 Share Posted March 15, 2017 I found this shark tooth yesterday in the first chalk bench of the Fort Hays Member of the Niobrara approximately one foot off the contact of the Carlile Shale (my first keeper from the Niobrara). I was able to prepare it as best I could this morning and realized it doesn't have a root. This was my first matrix prep of a fossil and I'm pretty pleased with how it turned out. I was hoping someone could help me identify it. I think the photos look at the lingual side of the tooth. Also - since it's imbedded in chalk, it is beginning to separate from the matrix. Does anyone have suggestions for helping affix it to the matrix? I would superglue it but don't want the glue to affect the overall appearance of the enamel. Thanks! 1 Link to comment Share on other sites More sharing options...
Darktooth Posted March 15, 2017 Share Posted March 15, 2017 What time period is this formation? My first impression is Mako but I am not familiar with this location. I like Trilo-butts and I cannot lie. Link to comment Share on other sites More sharing options...
chg057 Posted March 15, 2017 Author Share Posted March 15, 2017 It's early Coniacian - approx 89.5 Ma, Western Interior Seaway. Link to comment Share on other sites More sharing options...
PFOOLEY Posted March 15, 2017 Share Posted March 15, 2017 Compare with Cretodus...cool tooth. 2 "I am glad I shall never be young without wild country to be young in. Of what avail are forty freedoms without a blank spot on the map?" ~Aldo Leopold (1887-1948) New Mexico Museum of Natural History Bulletins Link to comment Share on other sites More sharing options...
FossilDudeCO Posted March 16, 2017 Share Posted March 16, 2017 I cant comment on the species, but nice find and nice prep on it! That chalk is rather fun to work with! Link to comment Share on other sites More sharing options...
chg057 Posted March 17, 2017 Author Share Posted March 17, 2017 20 hours ago, FossilDudeCO said: I cant comment on the species, but nice find and nice prep on it! That chalk is rather fun to work with! Hey thanks! Link to comment Share on other sites More sharing options...
FossilDAWG Posted March 17, 2017 Share Posted March 17, 2017 I'm not really seeing Cretodus. Perhaps a Protosphyraena tooth? Don See this link: Link to comment Share on other sites More sharing options...
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