Specimen 58982 – myFOSSIL

Mason Hintermeister posted a new specimen. 5 years, 9 months ago

5 years, 9 months ago

5 years, 9 months ago

Mason Hintermeister has contributed specimen mFeM 58982 to myFOSSIL!
- Bill Heim replied 5 years, 8 months ago
  
  If you click on the Geochronology items, you can narrow it down to a least Miocene. If you like I can do it for you. Traditionally this has been called N. primigenus but as it is virtually identical to the modern species, I would say either species designation is acceptable (I would lean towards what you put down).
  - Mason Hintermeister replied 5 years, 8 months ago
    
    Sorry, on my phone the webpage loads with only the formation boxes in frame so sometimes I forget to put in the time period. I’ll fix that. Since it was found in float material, I don’t know which zone it was part of, and I understand the Calvert FM spans through a few stages (3 if memory serves), so I’ll keep it at Miocene. As for species desig…[Read more]
    - Bill Heim replied 5 years, 8 months ago
      
      There is the Calvert, Choptank and Saint Mary’s Formations going south respectively. This is at the northern end which is strictly Calvert formation. Occasionally, a tooth from the underlying formations will wash up. I have some Eocene float that I have found there (surprisingly in good shape). Members of the Calvert formation are the Plum…[Read more]

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How do I go figuring out the age and name of the rock I was collecting in?
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What is the difference between a group, formation, and member?
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- Click here for more information from the British Geological Survey.

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I’m concerned my specimen is not research grade material, does that matter?
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