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Patrick Hsieh

Profile picture of Patrick Hsieh

Patrick Hsieh

@patrick-hsieh
Los Angeles, CA
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  • Profile picture of Patrick Hsieh

    Patrick Hsieh posted a new activity comment 1 day, 20 hours ago

    1 day, 20 hours ago
    1 day, 20 hours ago

    Looks like Crepidula sp.

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  • Profile picture of Patrick Hsieh

    Patrick Hsieh posted a new activity comment 1 day, 21 hours ago

    1 day, 21 hours ago
    1 day, 21 hours ago

    I’m inclined to say fossil due to what look like regular growth lines, but location, scale and views from other angles are needed.

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  • Profile picture of Patrick Hsieh

    Patrick Hsieh posted a new activity comment 1 week, 2 days ago

    1 week, 2 days ago
    1 week, 2 days ago

    Halysites coral

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  • Profile picture of Patrick Hsieh

    Patrick Hsieh posted a new activity comment 1 week, 3 days ago

    1 week, 3 days ago
    1 week, 3 days ago

    It is part of the outer lip of a mollusc, probably a helmet conch, Cassis sp.

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  • Profile picture of Patrick Hsieh

    Patrick Hsieh posted a new activity comment 1 week, 3 days ago

    1 week, 3 days ago
    1 week, 3 days ago

    Could be a fenestrate bryozoan.

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  • Profile picture of Patrick Hsieh

    Patrick Hsieh posted a new activity comment 1 week, 3 days ago

    1 week, 3 days ago
    1 week, 3 days ago

    Orthocone- concave on one end, covex on the other; overall shape tapering down to a point. It is a cephalopod, related to but not exactly a squid or octopus.

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  • Profile picture of Patrick Hsieh

    Patrick Hsieh posted a new activity comment 1 week, 4 days ago

    1 week, 4 days ago
    1 week, 4 days ago

    Not a tooth, broken piece of shell, probably oyster.

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  • Profile picture of Patrick Hsieh

    Patrick Hsieh posted a new activity comment 1 week, 4 days ago

    1 week, 4 days ago
    1 week, 4 days ago

    Part of an ammonite or baculite. You can see the dendrite shaped sutures that are characteristic.

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  • Profile picture of Patrick Hsieh

    Patrick Hsieh posted a new specimen. 2 weeks ago

    2 weeks ago
    2 weeks ago

    Patrick Hsieh has contributed specimen mFeM 95361 to myFOSSIL!

  • Profile picture of Patrick Hsieh

    Patrick Hsieh posted a new specimen. 2 weeks ago

    2 weeks ago
    2 weeks ago

    Patrick Hsieh has contributed specimen mFeM 95352 to myFOSSIL!

  • Profile picture of Patrick Hsieh

    Patrick Hsieh posted a new activity comment 2 weeks, 6 days ago

    2 weeks, 6 days ago
    2 weeks, 6 days ago

    Rock with tube made by a modern boring pholad clam.

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  • Profile picture of Patrick Hsieh

    Patrick Hsieh posted a new activity comment 2 weeks, 6 days ago

    2 weeks, 6 days ago
    2 weeks, 6 days ago

    Modern coral

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  • Profile picture of Patrick Hsieh

    Patrick Hsieh posted a new activity comment 3 weeks ago

    3 weeks ago
    3 weeks ago

    A scale and pictures from other angles would definitely be helpful. One possibility is that it is a partial fragment of the ventral edge of a bivalve or brachiopod shell. Again, a scale and another view looking down the dorsal-ventral axis showing the undulations of the shell could help confirm that.

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  • Profile picture of Patrick Hsieh

    Patrick Hsieh posted a new activity comment 3 weeks, 4 days ago

    3 weeks, 4 days ago
    3 weeks, 4 days ago

    @mackenzie-smith Thanks! Further preparation may reveal more of it, but I’ve held out so far since I don’t have experience with this matrix.

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  • Profile picture of Patrick Hsieh

    Patrick Hsieh posted a new activity comment 3 weeks, 4 days ago

    3 weeks, 4 days ago
    3 weeks, 4 days ago

    @bill-heim Thanks!

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  • Profile picture of Patrick Hsieh

    Patrick Hsieh posted a new activity comment 3 weeks, 4 days ago

    3 weeks, 4 days ago
    3 weeks, 4 days ago

    @mackenzie-smith At this locality, I found 3 distinct fossil bearing zones. At the bottom is a carbonized zone resembling lignite. Above the lignite layer is a compressed vegetation layer, which is where this specimen is from. Above this is a gray fine-grained mudstone which is where the fern came from. Above that layer is a tan sandstone layer…[Read more]

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  • Profile picture of Patrick Hsieh

    Patrick Hsieh posted a new activity comment 3 weeks, 4 days ago

    3 weeks, 4 days ago
    3 weeks, 4 days ago

    @mackenzie-smith No worries, thanks for the ID! It is late Campanian (73 mya) according to: https://naturalhistory2.si.edu/ETE/ETE_People_Wing_ResearchThemes_BCR.html I’m terrible with botany, what would be the taxonomic name for ferns?

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  • Profile picture of Patrick Hsieh

    Patrick Hsieh posted a new activity comment 3 weeks, 5 days ago

    3 weeks, 5 days ago
    3 weeks, 5 days ago

    @bill-heim Not sure what this is, the shape reminds me of an Isurus sp. type tooth, but I don’t remember ever seeing them with serrations.

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  • Profile picture of Patrick Hsieh

    Patrick Hsieh posted a new specimen. 3 weeks, 5 days ago

    3 weeks, 5 days ago
    3 weeks, 5 days ago

    Patrick Hsieh has contributed specimen mFeM 94691 to myFOSSIL!

    • Profile picture of Patrick Hsieh
      Patrick Hsieh replied 3 weeks, 5 days ago

      @bill-heim Not sure what this is, the shape reminds me of an Isurus sp. type tooth, but I don’t remember ever seeing them with serrations.

    • Profile picture of Bill Heim
      Bill Heim replied 3 weeks, 4 days ago

      Juvenile Great White lower tooth

    • Profile picture of Patrick Hsieh
      Patrick Hsieh replied 3 weeks, 4 days ago

      @bill-heim Thanks!

  • Profile picture of Patrick Hsieh

    Patrick Hsieh posted a new specimen. 3 weeks, 5 days ago

    3 weeks, 5 days ago
    3 weeks, 5 days ago

    Patrick Hsieh has contributed specimen mFeM 94676 to myFOSSIL!

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Development of myFOSSIL is based upon work largely supported by the National Science Foundation under Grant No. DRL-1322725. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.

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