Jack Kallmeyer

  • 3 weeks, 6 days ago
  • 1 month, 1 week ago
    Jack Kallmeyer replied to the topic Something Crunchy in the forum What Is It?

    @greg-kessinger  Canadian pebble is probable.  The material on the surface would not have survived the glacial action that rounded the pebble.  My thought is that this is a post glacial mineralogic creation, perhaps caliche?

    From my own experience, I have a small pebble that I found as a kid that was split in two with both sides together.  It is red sandstone (?) and inside is the impression of a Devonian brachiopod.  So this one made it from Canada to Dayton, Ohio.

    The other improbable specimen was found by a fellow Dry Dredger here in Cincinnati.  This was a small slab with a complete well preserved Devonian Phacops trilobite from the Toledo, Ohio area.  How that survived is unimaginable.

    Jack

  • 1 month, 2 weeks ago
    Jack Kallmeyer updated their own Fossil #024968
  • 1 month, 2 weeks ago
    Jack Kallmeyer uploaded a new image to Fossil #024968
  • 1 month, 2 weeks ago
    Jack Kallmeyer uploaded a new image to Fossil #024968
  • 1 month, 2 weeks ago
    Jack Kallmeyer updated their own Fossil #004322

    Classification

    From

    kingdom

    Plant

    To

    kingdom

    Animal

    From

    phylum

    Rhodophyta

    To

    phylum

    Porifera

    From

    class

    To

    class

    Demospongiae

    From

    family

    To

    family

    Chaetetidae

    From

    genus

    To

    genus

    Solenopora

  • 1 month, 2 weeks ago
    Jack Kallmeyer updated their own Fossil #005424

    Classification

    From

    kingdom

    Plant

    To

    kingdom

    Animal

    From

    phylum

    Rhodophyta

    To

    phylum

    Porifera

    From

    class

    To

    class

    Demospongiae

    From

    family

    To

    family

    Chaetetidae

    From

    genus

    To

    genus

    Solenopora

  • 1 month, 2 weeks ago
    Jack Kallmeyer commented on their own Fossil #007022

    Further study of these specimens through thin section analysis reveals an internal structure equivalent to the type specimens for Solenopora. I have changed the classification here to reflect that.

  • 1 month, 2 weeks ago
    Jack Kallmeyer updated their own Fossil #007022

    Classification

    From

    kingdom

    Plant

    To

    kingdom

    Animal

    From

    phylum

    Rhodophyta

    To

    phylum

    Porifera

    From

    class

    To

    class

    Demospongiae

    From

    family

    To

    family

    Chaetetidae

    From

    genus

    To

    genus

    Solenopora

  • 1 month, 3 weeks ago
    Jack Kallmeyer posted a new activity comment

    Jen, I just realized I missed your point. Yes, this can be added to the other one. I don’t know why I thought you were deleting it altogether. Sorry.

  • 1 month, 3 weeks ago
    Jack Kallmeyer posted a new activity comment

    7045 is the only image that shows arrows illustrating growth direction. Viewers don’t have to think about what I am trying to convey that this thing is growing in a 360 degree manner. If you just want pretty pictures of the fossils then you can eliminate this one but I did this to convey a point.

  • 1 month, 3 weeks ago
    Jack Kallmeyer posted a new activity comment

    Probably but that would be assuming I knew how to do that 🙂

  • 1 month, 3 weeks ago
    Jack Kallmeyer commented on their own Fossil #006937

    One cheat is that large trackways have to be either Isotelus or Eurypterid. The later would be exceedingly rare. Also, the Isotelus tracks have a trifid ending on the nicely preserved ones while Flexis won’t.

  • 1 month, 3 weeks ago
    Jack Kallmeyer posted a new activity comment

    I agree with Bill – Protarea richmondensis – a coral

  • 3 months, 1 week ago
    Jack Kallmeyer replied to the topic What are these in the forum What Is It?

    @david-powers @vperez  Yup, definitely cephalopods

     

    Jack

  • 3 months, 3 weeks ago
    Jack Kallmeyer replied to the topic I have this block of limestone in the forum What Is It?

    <span class=”atwho-inserted” contenteditable=”false” data-atwho-at-query=”@david-p”>@david-powers</span>  Your mesh objects are bryozoan fronds.  Possibly from the genus Archimedes.  I’m not familiar with this particular formation but in the Mississippian of Indiana they would be from Archimedes most likely.

    Jack

  • 4 months, 4 weeks ago
    Nathan Newell and Jack Kallmeyer are now friends
  • 5 months, 3 weeks ago
    Jack Kallmeyer replied to the topic What are these things? in the forum What Is It?

    @nathan-newell, @evan-walsh  My thought was a moldaic preservation of a crinoid stem segment.

    Jack

  • 6 months, 3 weeks ago
    Mackenzie White and Jack Kallmeyer are now friends
  • 7 months ago
    Jack Kallmeyer replied to the topic What caused this? in the forum What Is It?

    @geoff-ruonavarra  I don’t see any fossils myself.  It looks like a piece of man made terrazzo or something that was cut with a diamond saw.  A natural break would not be that smooth and parallel sided, especially since the smooth break goes through all the clasts with no unevenness.  That’s my opinion.

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