Mango Posted September 7, 2010 Share Posted September 7, 2010 Found this nice Mako on the weekend. 2 1/16". Manatee County, Florida. I don't have many mako lowers to compare this to, so I looked through my books. Couldn't find a pic of a mako with a cusp. Looking closely, I am guessing it is a pathology. What do you think? Thanks. Pentax Optio W60 Link to comment Share on other sites More sharing options...
Auspex Posted September 7, 2010 Share Posted September 7, 2010 I've seen that on I. desori a couple times (rare, to me). Don't know whether it's a pathology or a genetic throw-back. "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...
tracer Posted September 7, 2010 Share Posted September 7, 2010 oh, criminey, no! those are freakin' bolts in its neck! isurus frankenstumpfus Link to comment Share on other sites More sharing options...
Foshunter Posted September 7, 2010 Share Posted September 7, 2010 oh, criminey, no! those are freakin' bolts in its neck! isurus frankenstumpfus Tracer--Believe you might have something there--Tom Grow Old Kicking And Screaming !!"Don't Tread On Me" Link to comment Share on other sites More sharing options...
Shellseeker Posted September 7, 2010 Share Posted September 7, 2010 Mango, Pretty, Pretty tooth with a puzzle -- Must have felt really good to find it.. It is a Mako, and that does look like a Cusp -- real nice conversation piece!! The White Queen ".... in her youth she could believe "six impossible things before breakfast" Link to comment Share on other sites More sharing options...
siteseer Posted September 7, 2010 Share Posted September 7, 2010 Yeah, I've seen cusps on hastalis and planus as well but not often. It could be just a minor variation in form - a slight overdevelopment of the enameloid - or a genetic expression from an ancestor as Auspex said. 1 Link to comment Share on other sites More sharing options...
Paleoc Posted September 7, 2010 Share Posted September 7, 2010 hastalis with cusps does occur on rare occasions. Link to comment Share on other sites More sharing options...
Sharks of SC Posted September 7, 2010 Share Posted September 7, 2010 I have examples of retroflexus makos with pronounced cusps, but the hastalis makos in this thread are the first Ive seen with them. Link to comment Share on other sites More sharing options...
barefootgirl Posted September 7, 2010 Share Posted September 7, 2010 It's a beautiful tooth. Congratulations on finding it and thanks for sharing it with us. In formal logic, a contradiction is the signal of defeat: but in the evolution of real knowledge, it marks the first step in progress toward victory. Alfred North Whithead 'Don't worry about the world coming to an end today. It's already tomorrow in Australia!' Link to comment Share on other sites More sharing options...
Nandomas Posted September 7, 2010 Share Posted September 7, 2010 hastalis with cusps does occur on rare occasions. paleoc, I like your teeth Erosion... will be my epitaph! http://www.paleonature.org/ https://fossilnews.org/ Link to comment Share on other sites More sharing options...
dutchhunter Posted September 7, 2010 Share Posted September 7, 2010 It is indeed a hastalis with side-cusps. I have a few with side-cusps but I haven't got any pictures. I do have pictures of a set of escherie's. http://img.webme.com/pic/c/cylichna/imgp3476.jpg Jeroen 1 Link to comment Share on other sites More sharing options...
Mango Posted September 8, 2010 Author Share Posted September 8, 2010 Thanks for all the input. Coloration on mine looks very much like the colors on Nandomas 2nd tooth. Hastalis with cusp it is. I am starting a drawer labeled RARE. It is near empty. Pentax Optio W60 Link to comment Share on other sites More sharing options...
jason longboard Posted September 10, 2010 Share Posted September 10, 2010 How could I not be running to look at all mine now. Yeah I needed something else to do. Dr. Heathcliff Huxtable is my mentor. Link to comment Share on other sites More sharing options...
Boesse Posted September 11, 2010 Share Posted September 11, 2010 Lateral cusplets do appear to occur less within Isurus than they do in Carcharodon - within Carcharodon they more frequently occur in juveniles (and I would bet the same holds true for Isurus). I've got a pretty nice Isurus planus tooth with cusplets from Sharktooth Hill. Bobby 1 Link to comment Share on other sites More sharing options...
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