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Showing results for tags 'modern vs fossil'.
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Modern shells and fossil shells: How to tell the difference?
MeargleSchmeargl posted a topic in Questions & Answers
I look at many a shell that I walk upon on a beach or creek, even at established fossil sites, and I wonder if some of these shells are fossil or not. This is particularly an issue at a place like the Calvert cliffs, where modern shells could wash from the Potomac just as easily as any fossil shells, and what makes it worse is that fossil and modern shells many times even have very similar color in places like river locations. As I am not a huge expert in fossil shells (or in particular, Bivalves as this would be the most common occurrence of confusion, being the most common modern shells on the banks of rivers), what are the big distinguishing features between modern and fossil shells?- 25 replies
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- bivalves/brachiopod
- distinctions
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Hi all, So, as some of you already know, my trip to Florida is coming closer and closer I am indeed really looking forward to it! Well, I have some questions about the fossils there. Firstly, for the seashells found there (bivalves and gastropods), I know that many are fossil (mainly Miocene to Pleistocene). Well, I was wondering if perhaps there were any tricks or techniques to recognize fossil ones from modern ones. For example, for the Holland coasts bivalves, the fossil ones are usually thicker, dull, white/light grey in color, and they don't let any (or very little) light shine through. Well, I was wondering if there were similar tricks for the Florida seashells to find out whether a shell is fossil or not. Please do let me know how you do it! Oh, and one other quick question: are ALL the shells NOT found on the beach fossils? I know that in the Netherlands this is not the case (you can find shells several kilometers inland that are modern; they have been brought here by floods and storms), but was wondering if this was maybe different for Florida. And lastly, a quick question about the fossiling permits. Do I need to sign up for one (I will be collecting both invertebrate and vertebrate fossils, like shark teeth and dugong bones)? If yes, is one permit enough for the family, or does everyone need to apply for one individually? And how do I get them? So, recap: What are tricks/techniques for recognizing fossil seashells from modern ones? Are all the inland seashells fossilized? Do I need fossil hunting permits? Also, if there are any special laws that you think I should be aware of let me know too. Thanks in advance for your answers! Best regards, Max PS: just realized, this is actually more suitable for the Fossil Hunts thread... @Fossildude19 or another moderator, can you please move it? Thanks