Uncle Siphuncle Posted July 13, 2008 Share Posted July 13, 2008 Guys I found this shark tooth in the Glen Rose fm, Lower Cretaceous, Texas 2-3 years ago. I think one guy years ago called it Protolamna sokolovi. Care to weigh in on ID? Grüße, Daniel A. Wöhr aus Südtexas "To the motivated go the spoils." Link to comment Share on other sites More sharing options...
kauffy Posted July 13, 2008 Share Posted July 13, 2008 i dont know what that is....but it sure is a killer tooth!! "Turn the fear of the unknown into the excitment of possibility!"We dont stop playing because we grow old, we grow old because we stop playing. Link to comment Share on other sites More sharing options...
Northern Sharks Posted July 13, 2008 Share Posted July 13, 2008 Seems like the correct ID to me. The deep grooves/striations are a feature of this species. What is the size? (root tip to blade tip) There's no limit to what you can accomplish when you're supposed to be doing something else Link to comment Share on other sites More sharing options...
Uncle Siphuncle Posted July 13, 2008 Author Share Posted July 13, 2008 It is about 3/8 inch. Grüße, Daniel A. Wöhr aus Südtexas "To the motivated go the spoils." Link to comment Share on other sites More sharing options...
Auspex Posted July 13, 2008 Share Posted July 13, 2008 Great pic of a fascinating tooth; you've got the photo thing down cold. "There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant “Try to learn something about everything and everything about something.” - Thomas Henry Huxley >Paleontology is an evolving science. >May your wonders never cease! Link to comment Share on other sites More sharing options...
Guest bmorefossil Posted July 13, 2008 Share Posted July 13, 2008 very cool, dont think i have seen this one before (= Link to comment Share on other sites More sharing options...
fossilselachian Posted July 13, 2008 Share Posted July 13, 2008 GuysI found this shark tooth in the Glen Rose fm, Lower Cretaceous, Texas 2-3 years ago. I think one guy years ago called it Protolamna sokolovi. Care to weigh in on ID? As other members have already suggested, Dan's shark tooth would appear to compare favorably with Protolamna sokolovi from the Texas Cretaceous. Such teeth exhibit ridges on both the lingual and labial faces of the crown as well as on the nearly the entire extent of the cusplets. I have attached a few photos of such teeth for comparison purposes. The one photo is of four examples although the lingual ridges are not overly apparent. A second and third photo shows examples in lingual and labial aspect where the crown ridges are more defined. Again, just my 3 cents worth of input. I will also note that Dan's example appears to a little more oblique than most examples of this species which I have seen - but since that's not too many - I would think this is not overly significant in this matter. 1 Link to comment Share on other sites More sharing options...
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