Ozzie Sweetwater Posted July 1, 2018 Share Posted July 1, 2018 How do you know what age and time period these are from? I found them just outside of Billings Montana. Link to comment Share on other sites More sharing options...
caldigger Posted July 1, 2018 Share Posted July 1, 2018 Pictures? Link to comment Share on other sites More sharing options...
Ozzie Sweetwater Posted July 1, 2018 Author Share Posted July 1, 2018 Whoops. Let's try this again. Link to comment Share on other sites More sharing options...
Kane Posted July 1, 2018 Share Posted July 1, 2018 11 minutes ago, Ozzie Sweetwater said: How do you know what age and time period these are from? I found them just outside of Billings Montana. You might find this tool useful to determine strata/age: https://macrostrat.org/map/#10/45.8039/-108.1068 (The benefit being that you can pinpoint the exact spot you found these!) ...How to Philosophize with a Hammer Link to comment Share on other sites More sharing options...
caldigger Posted July 1, 2018 Share Posted July 1, 2018 Yes, I attempted to look at a geologic map of the Billings area ( not easy on a small phone!) It shows many ages and strata for the area. You need to find the exact spot these were found to determine proper age of formation. Link to comment Share on other sites More sharing options...
Wolf89 Posted July 1, 2018 Share Posted July 1, 2018 What if it is not highlighted on the spot I collect at? Link to comment Share on other sites More sharing options...
jdp Posted July 1, 2018 Share Posted July 1, 2018 Probably Bearpaw Shale, which is Cretaceous. Link to comment Share on other sites More sharing options...
Kane Posted July 1, 2018 Share Posted July 1, 2018 28 minutes ago, Wolf52893 said: What if it is not highlighted on the spot I collect at? Just go to https://macrostrat.org/map/#3/40.80/-94.10 1. On the bottom right you can click or tap on the icon to call up the tools. 2. Click or tap on the magnifying lens. 3. Input your location (or somewhere close). 4. You can zoom in and out, and move in any direction, just like Google Maps. 5. Once you come across your precise collecting spot, tap or click on it and a window pane comes up that will describe the strata. 2 ...How to Philosophize with a Hammer Link to comment Share on other sites More sharing options...
Fossildude19 Posted July 1, 2018 Share Posted July 1, 2018 Can we get a detailed close up of the item I've circled? It looks more like a phyllocarid or conchostrachan, ... than a fish scale, at least in this picture. Tim - VETERAN SHALE SPLITTER VFOTM --- APRIL - 2015 __________________________________________________ "In every walk with nature one receives far more than he seeks." John Muir ~ ~ ~ ~ ><))))( *> About Me Link to comment Share on other sites More sharing options...
Miocene_Mason Posted July 1, 2018 Share Posted July 1, 2018 One of the “scales” looks like an inarticulate brachiopod. “...whilst this planet has gone cycling on according to the fixed law of gravity, from so simple a beginning endless forms most beautiful and most wonderful have been and are being evolved.” ~ Charles Darwin Happy hunting, Mason Link to comment Share on other sites More sharing options...
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