Unidentified leaf – green river formation

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  • #115520
    Scott Johansen
    Participant

    Can anyone identify this species? Something I haven’t seen before. Found near Bonanza, Utah. This is Eocene.

    <span class=”atwho-inserted” contenteditable=”false” data-atwho-at-query=”@mackenzie-smith”>@mackenzie-smith</span>

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    #115561
    Corinne
    Participant

    <span class=”atwho-inserted” contenteditable=”false” data-atwho-at-query=”@mackenzie-s”>@mackenzie-smith</span> any help?

    #115669
    MacKenzie Smith
    Participant

    @scott-johansen @a-trilobite @corine Thank you for bringing this to my attention! I did not know what this was either and so I showed the picture to my advisor. This is a leaf from a plant called Quereuxia though it has also been referred to as Trapago in the literature. The name Quereuxia has priority though. It’s an aquatic flowering plant that belongs to the family Trapaceae which today only has one living genus and lives exclusively in eastern Asia. I’m aware of only one other extinct genus in this family. Most Quereuxia fossils are known from the Late Cretaceous of Russia and Canada. While Quereuxia has been described from the Green River before, it is incredibly rare! This is an excellent find!

    #115673
    Scott Johansen
    Participant

    <span class=”atwho-inserted” contenteditable=”false” data-atwho-at-query=”@mackenzie-smith”>@mackenzie-smith</span>

    Tank you! This is super helpful and pretty awesome!

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