frankh8147 Posted June 23, 2015 Posted June 23, 2015 (edited) In a lot of posts regarding teeth (usually bony fish and Mosasaur), I see cross sections referenced frequently (as in oval shaped, lens shaped, etc.) and I have to admit - I have no idea what that means or what to look for on a tooth. What is meant by the term 'cross section and what would I look for to help ID a tooth. Any help would be greatly appreciated. -Frank Edited June 23, 2015 by frankh8147
Raggedy Man Posted June 23, 2015 Posted June 23, 2015 This is in reference to the working portion of the tooth. ...I'm back.
frankh8147 Posted June 23, 2015 Author Posted June 23, 2015 You mean the tip? And also, I can figure out what oval means but what shape would I look for to determine 'lens shaped'...by the way, if 'lens' is a common shape and it becomes obvious to everyone that I didn't pay attention in geometry class, I apologize for that!
Al Dente Posted June 23, 2015 Posted June 23, 2015 A cross section in regards to a tooth is what the outline of the tooth would look like if it were sliced in two through the middle. Another name for lens shape is biconvex. The lens of a magnifying glass would be biconvex if sliced in two and an outline is drawn of the sliced portion. Here is a picture of some reptile teeth where they have drawn in the cross section. D would be an oval and Z is lens shaped. 2
Troodon Posted June 23, 2015 Posted June 23, 2015 Just to add to Al Dente post here are images of Dinosaur teeth with the outline of the base or crossection at the bottom (M,O,R,U). These are aids in determining a Species but also in locating its position in the jaw. 2
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