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For more than 10 years that I have been going through this forum, I always see so many photos of identification requests with a coin, a x-dollar bill or any useless object to measure the size of the fossils. Quite often, other members and I ask to have a real ruler in cm or inches on the photos, or to have the size of fossils in the text, some say that they do not have a ruler... How can we not have a rule at home when we tinker, when we have a schoolboy at home, when we knit or sew? Moreover, it is not expensive and there are rules in every department store. We can also find rules drawings on the internet and print when we have nothing else. So in the face of this recurrence that poses many problems for those who are willing to do a service to identify your fossils, I made a millimetre paper on my computer this morning. It just took me 1/4 hour. All you have to do is print it on a thick sheet of paper and place your fossils on it before photographing them. Now no one can say that he has nothing to measure his fossils. Your turn ! Coco Papier millimétré.pdf

So I am finally getting a digital micrometer because the two formations I have spent 100% of my time in over the last 8 months has some extremely small fossils (do know if you call them Micro but many are <5mm and only a portion of a MM wide or deep. The one I got goes down to 1/100 of a mm which should be very useful for measuring growth rings and other characteristics of the various species. Should be here early next week, which is good as I have a significant number of fossils to ID and further remove matrix. It may seem unusual that summer is not my collecting time but due to the restrictions on collecting where I live I mainly collect in talus and ditches during the winter when concretions and large slides happen. Given the fire conditions here in the US west the last couple of years I plan and imaging and prepping this summer. Thus the excitement over a digital Micrometer:)

Hello all, I was wondering on how to proper measure a fossil sharks tooth. Is it with or length, and is it from the longest points? Thanks for any reply.