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Antievolution.org Discussion Board > From the Panda's Thumb > After the Bar Closes... > Is there a paleaoichthyologist in the house?

nuytsia Posts: 131 Joined: June 2006 (Permalink) Posted: April 24 2009,19:40    Hi folks. Would anyone here know if this fossil tooth can be identified beyond the fact that it's a shark? It was collected by a friend at Pinhay Bay (which is just down the coast from Lyme Regis in Dorset) a few years back.

Dr.GH Posts: 2333 Joined: May 2002 (Permalink) Posted: April 24 2009,22:39    It is a shark- I am 90% sure it is genus Isuras but I am not able to tell the species; maybe hastalis. They are related to the modern Mako sharks. -------------- "Science is the horse that pulls the cart of philosophy." L. Susskind, 2004 "SMOLIN VS. SUSSKIND: THE ANTHROPIC PRINCIPLE"

nuytsia Posts: 131 Joined: June 2006 (Permalink) Posted: April 25 2009,00:22    Hi Gary, Many thanks for the very speedy reply! The wikipedia page for Isurus dates the genus as far back as the Late Paleocene but I'm fairly sure this tooth is Jurassic (the area is referred to as the Jurassic coast). I'm not 100% sure on this I admit, but given this information, is there any other possible candidate?

Dr.GH Posts: 2333 Joined: May 2002 (Permalink) Posted: April 25 2009,10:50    Then it beats me. The best idea would be to take it to the local museum, or rocks and minerals club. -------------- "Science is the horse that pulls the cart of philosophy." L. Susskind, 2004 "SMOLIN VS. SUSSKIND: THE ANTHROPIC PRINCIPLE"

Timothy McDougald Posts: 1036 Joined: Dec. 2006 (Permalink) Posted: April 25 2009,12:47    I don't know if this helps but a quick Google search indicates that Hybodus species were common in the area of Pinhay Bay. -------------- Church burning ebola boy FTK: I Didn't answer your questions because it beats the hell out of me. PaV: I suppose for me to be pried away from what I do to focus long and hard on that particular problem would take, quite honestly, hundreds of thousands of dollars to begin to pique my interest.

nuytsia Posts: 131 Joined: June 2006 (Permalink) Posted: April 26 2009,15:16    Hmmm... I have to say that the images of Isurus teeth do look very similar. Hybodus don't seem a good match. Interestingly the google search on Pinhay Bay brought up a pdf and the cliffs in that area are Lower Jurassic to Triassic. I think a museum is going to be have to be the next stop. Thanks for the help guys!

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