Arthropod Tracks and Burrows

Discussion in 'Cephalopod Fossils' started by Pr0teusUnbound, Feb 20, 2013.

  1. Pr0teusUnbound

    Pr0teusUnbound GPO Registered

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    a couple of weeks ago i found some breaker rock containing what appears to be a great number of trace fossils. there appear to be at least 4 different kinds strew throughout the carbonaceous layers of tan dolomite. heres a piece of what looks like the ichnogenus Cruziana:

    overview

    cross section
     

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  2. Pr0teusUnbound

    Pr0teusUnbound GPO Registered

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    these next 3 might be arthropod ichnos or plant cast/molds:



     

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  3. Pr0teusUnbound

    Pr0teusUnbound GPO Registered

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    1. 2.

    3.
     

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    Pr0teusUnbound GPO Registered

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  5. Pr0teusUnbound

    Pr0teusUnbound GPO Registered

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    the last type is large, tubular, and apparently free of the carbonaceous lamina. it must have been made by a large trilobite (Phacops or Dipleura) or a large phyllocarid.

    1. 2.

    3. 4.
     

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