paleontology
A lucky trilobite find

While near a stream in London, Ontario my daughter and I were checking for crayfish and low and behold we pulled up this rock and it had the bones of a fossil still intact. We have been wondering if it is normal to have bone attached to the rock, and what type of fossil it is? Can anyone ID this fossil for me so I can share it with my daughters?

Fossil Collector: Dave B.

Location: London, Ontario, Canada

[Editor: A very nice find! What you see here are the shells of fossil crustaceans called trilobites. Your daughter may not have found the crustacean she was looking for, but we like this one even more. It is not unusual to find trilobites embedded in the rock this way, in fact, these are very clean and well exposed from the rock. The tail end has a distinctive pattern and we will hazard a guess that is is the trilobite Pseudogygites canadensis. When it warms up, you should go look for some more! ]

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4 Responses to “Crayfish and Trilobites”

  1. Keith C Kraushaar says:

    That is a very good fossil. I am sssoooo jealous!!

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  2. gary burlin says:

    Awesome Find!!!!!!!

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  3. Solius Symbiosus says:

    Not to be pedantic, but trilobites are not crustaceans, they are trilobitomorphs. An analogy would be like calling a clam an octopus… they are related, but they are not the same.

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  4. Solius Symbiosus says:

    Oh, I should add that the trilobites are some kind of phacopid, probably one of the calymenids.

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