MacKenzie Smith

  • 1 day, 15 hours ago
    Matthew Gramling and MacKenzie Smith are now friends
  • 2 days, 10 hours ago
    MacKenzie Smith posted a new activity comment

    Sometimes they are just large rocks but concretions form from sediment accumulating to a nucleus (which could be plant matter, minerals or shell). In the picture, it looks like there may be some plant matter though just the carbon from it.

  • 3 days, 14 hours ago
    MacKenzie Smith posted a new activity comment

    The best tools for this are air scribes (like PaleoAro or MicroJack). They run on compressed air.

  • 4 days, 12 hours ago
    MacKenzie Smith posted a new activity comment

    @adam-frey I don’t know about this formation in particular but it can be from heavy wave action (think certain rocky beaches) or from elevation (large rocks falling down a mountain after a desert flash flood or bottom of a marine canyon).

  • 4 days, 17 hours ago
    MacKenzie Smith posted a new activity comment

    Generally speaking we rarely find fossils in the conglomerate layers because they get crushed by wave action/transportation.

  • 4 days, 17 hours ago
    MacKenzie Smith posted a new activity comment

    This part of the formation is a conglomerate. It takes a lot of energy to move large rocks so we know that it took a lot of depositional energy to form this unit.

  • 4 days, 17 hours ago
    MacKenzie Smith posted a new activity comment

    Hi @adam-frey. I believe that is the Renton Formation. This part is shale. You may want to check with Washington’s Department of Natural Resources before collecting. WA changed their collecting laws about 5 years ago. The Northwest Paleontological Association would be the people to talk to. They are a group of avocational paleontologists who meet at the Burke Museum.

  • 4 days, 17 hours ago
    MacKenzie Smith posted a new activity comment

    Could it be a crinoid stem?

  • 5 days, 8 hours ago
    MacKenzie Smith posted a new activity comment

    Maybe some dermal ossical?

  • 6 days, 10 hours ago
    MacKenzie Smith posted an image in the group Florida’s Fossils from the myFOSSIL app

    Below Alum Bluff is the 18 Ma Chapola Formation which is very rich in invertebrates. #fossil #collection_site

  • 6 days, 10 hours ago
    MacKenzie Smith posted an image in the group Florida’s Fossils from the myFOSSIL app

    Our post-doc, Hai, found the largest palm leaf from Alum Bluff today. It’s about 15 Ma. #fossil

  • 6 days, 10 hours ago
    MacKenzie Smith posted an image in the group Florida’s Fossils from the myFOSSIL app

    Lots of plant material at Alum Bluff, one of the few plant fossil localities in Florida (material is 15 Ma). Most looks like this, identifiable stuff is hard to find. #fossil #collection_site

  • 1 week ago
    MacKenzie Smith posted a new activity comment

    Photographer Xiaoqing.

  • 1 week ago
    MacKenzie Smith posted an image in the group Paleo Pics from the myFOSSIL app

    Here is a small Plataninophyllum leaf. The name is composed of “Platanin” for Platanus (commonly known as the Sycamore in the US and Plane Tree in the UK) and “-phyllum” for leaf. We believe it to be related to sycamores. Note the agrophic veins (the asymmetric tertiaries coming off the basal secondaries which are actually on top since the picture is upside down). #fossil

  • 1 week, 2 days ago
    MacKenzie Smith posted a new activity comment

    Congrats @roberto-silva on this outstanding accomplishment! 🎉

  • 1 week, 4 days ago
    MacKenzie Smith posted a new activity comment

    Hi there. There may be some paleo classes offered at a nearby university or community college. But paleontology has a long standing tradition of also being accessible via informal learning and self study. There are many paleontologists who are not employed by museums or universities that just do it as a hobby and have found spectacular fossils and/or have published great scientific articles. You can check the “Locations” menu at the website www.myfossil.org to find a place near you to get connected.

  • 1 week, 5 days ago
    MacKenzie Smith posted a new activity comment

    Hi@evan-kruse. It looks like a coral to me.

  • 1 week, 6 days ago
    MacKenzie Smith posted an image in the group Florida’s Fossils from the myFOSSIL app

    Time to look at all of the rhino fossils found in northwest central Florida at the Williston Peanut Fest. #event

  • 1 week, 6 days ago
    MacKenzie Smith posted a new activity comment

    @drsukhendu-mukhopadhay Yes. I think you’re right. Shape and time match.

  • 2 weeks ago
    MacKenzie Smith posted a new activity comment

    I’m not really sure either. The region has a long geologic record but is most famous for Late Triassic fossil corals from the former Tethys Sea.

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