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<p>Those look like sea urchin 'spines'. <br>
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<div style="font-size:13px"><font class="Apple-style-span" style="font-size:13px" size="2" face="Helvetica, Sans-Serif">Gene Hall<br>
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<div style="font-size:13px"><font class="Apple-style-span" size="2" face="Helvetica, Sans-Serif">University of Arizona Insect Collection (Manager)<br>
& CALS Cooperative Extension (Insect Diagnostics)<br>
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<div style="font-size:13px"><font class="Apple-style-span" size="2" face="Helvetica, Sans-Serif">Department of Entomology</font></div>
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<div style="font-size:13px"><font class="Apple-style-span" size="2" face="Helvetica, Sans-Serif">1140 E. South Campus Dr.</font></div>
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<div style="font-size:13px"><font class="Apple-style-span" size="2" face="Helvetica, Sans-Serif">University of Arizona</font></div>
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<div style="font-size:13px"><font class="Apple-style-span" size="2" face="Helvetica, Sans-Serif">Tucson, AZ 85721</font></div>
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<div style="font-size:13px"><font class="Apple-style-span" size="2" face="Helvetica, Sans-Serif">Ph: 520.621.6446</font></div>
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<div style="font-size:13px"><font class="Apple-style-span" size="2" face="Helvetica, Sans-Serif">Email: wehall@email.arizona.edu</font></div>
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<div><font class="Apple-style-span" style="font-size:13px" size="2" face="Helvetica, Sans-Serif">UA INSECT COLLECTION: </font><font size="2" face="Helvetica, Sans-Serif">http://www.uainsectcollection.com/</font></div>
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<div style="font-size:13px"><font size="2" face="Helvetica, Sans-Serif"><span class="Apple-style-span" style="font-size:13px"><font class="Apple-style-span">PTILIIDAE:
</font></span><a id="NoLP" target="_blank" href="https://urldefense.proofpoint.com/v2/url?u=http-3A__tolweb.org_Ptiliidae&d=CwMFAw&c=-dg2m7zWuuDZ0MUcV7Sdqw&r=CLFZJ3fvGSmDp7xK1dNZfh6uGV_h-8NVlo3fXNoRNzI&m=qCYgaMZSMjs7nRFz8F3Y8NrBGdrpBrT7M0ZdpCNr4B0&s=6_hH38qoEp5KvrfEDMA_ZOJLjjyKRPz_SNt0e9e94U0&e=" tabindex="0">http://tolweb.org/Ptiliidae</a><br>
</font><font size="2" face="Helvetica, Sans-Serif"><font color="#003366"><span style="color:rgb(0,0,0)">ZOOTAXA Subject Editor:
</span></font></font><font size="2" face="Helvetica, Sans-Serif"><font color="#003366"><font style="color:rgb(0,0,0)"><font style="color:rgb(0,0,0)"><span style="color:rgb(0,0,0)"><span style="color:rgb(0,0,0)">STAPHYLINOIDEA (excluding Staphylinidae and Hydraenidae)</span></span></font></font></font></font><br>
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<div id="divRplyFwdMsg" dir="ltr"><font style="font-size:11pt" color="#000000" face="Calibri, sans-serif"><b>From:</b> nhcoll-l-bounces@mailman.yale.edu <nhcoll-l-bounces@mailman.yale.edu> on behalf of Jennifer Pietarila <jen320@gwmail.gwu.edu><br>
<b>Sent:</b> Tuesday, October 18, 2016 2:19 PM<br>
<b>To:</b> nhcoll-l@mailman.yale.edu<br>
<b>Subject:</b> [Nhcoll-l] Possible dinosaur teeth ID</font>
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<div>Hello!<br>
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I have two pendants in the collection where I work and we are trying to figure out what material they are made of. These pendants were found in Eastern Washington as part of an archaeological survey. The records indicate that they were identified as dinosaur
teeth, specifically Diplodocus. <br>
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As I'm not an expert in the identification of dinosaur specific materials, I was wondering if someone could shed some light on these mystery pendants.
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Each piece has smooth micro grooves running longitudinally along the surface, three pinched ridges at the crown, and a circular groove at the root. I am not sure if the groove is natural or man-made. They are over 2 inches in length (6.5 cm). I have attached
a few pictures as examples. <br>
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Thanks!<br>
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Jennifer <br>
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