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  • Isotelus "mafritzae"


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    Kane
    • This species of Isotelus is yet to be formally described. It has been given the provisional species name (suspended under quotation marks) as "mafritzae." There are two known types (A and B ) of I. "mafritzae" that occur exclusively in the Lindsay Formation: Type A have long, slender genal spines, while Type B have none. 

       

      See:

      Rudkin, D.M. & Tripp, R.P. 1987
      A reassessment of the Ordovician trilobite Isotelus, part II: Ontario species.
      Canadian Paleontology and Biostratigraphy Seminar, London, Ontario, Sept. 1987.

    Taxonomy

    Isotelus "mafritzae" - type "b"

    Kingdom: Animalia
    Phylum: Arthropoda
    Class: Trilobita
    Order: Asaphida
    Family: Asaphidae
    Genus: Isotelus
    Species: I. sp. ("mafritzae")

    Geological Time Scale

    Eon: Phanerozoic
    Era: Paleozoic
    Period: Ordovician
    Epoch: Late

    Stratigraphy

    Simcoe Group
    Lindsay Formation

    Provenance

    Collector: K. Brett
    Date Collected: 05/27/2017
    Acquired by: Purchase/Trade

    Dimensions

    Blank: 7cm
    Width: 4cm

    Location

    St Marys Quarry
    Durham Region
    Ontario
    Canada

    Comments

    This species of Isotelus is yet to be formally described. It has been given the provisional species name (suspended under quotation marks) as "mafritzae." There are two known types (A and B ) of I. "mafritzae" that occur exclusively in the Lindsay Formation: Type A have long, slender genal spines, while Type B have none. 

     

    See:

    Rudkin, D.M. & Tripp, R.P. 1987
    A reassessment of the Ordovician trilobite Isotelus, part II: Ontario species.
    Canadian Paleontology and Biostratigraphy Seminar, London, Ontario, Sept. 1987.



    User Feedback


    FossilDAWG

    Posted · Report

    Very nice specimen!:wub:

     

    I wonder how long it will take before this species is formally described and named.  It seems to me that people have been using "mafritzae" for many years.

     

    Don

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    1 hour ago, FossilDAWG said:

    Very nice specimen!:wub:

     

    I wonder how long it will take before this species is formally described and named.  It seems to me that people have been using "mafritzae" for many years.

     

    Don

    Thanks! 

     

    I wish I knew! I think it is a matter of money and time. There's not as much interest (or bodies and funding) to give these the additional study and formal description they so deserve.

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    Fossildude19

    Posted · Report

    This is  a great fossil.

    On 8/8/2018 at 11:49 AM, Kane said:

    Thanks! 

     

    I wish I knew! I think it is a matter of money and time. There's not as much interest (or bodies and funding) to give these the additional study and formal description they so deserve.

    You should do the research and write the paper. ;) 

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    Harry Pristis

    Posted · Report

     

    I am surprised (and a little disappointed) that Kevin @Northern Sharks didn't describe this bug back in 2010, naming it for me.  It's not too late Kevin.

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    Northern Sharks

    Posted · Report

    16 hours ago, Harry Pristis said:

     

    I am surprised (and a little disappointed) the Kevin @Northern Sharks didn't describe this bug back in 2010, naming it for me.  It's not too late Kevin.

    Thanks Harry! I've had a string tied around my finger for the past 10 years to remind me to do something, but forgot what it was. I'll get busy on that description right away. How does this sound: Etymology-Species named in honour of Harry Pristis, just because he asked.

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    Kane

    Posted · Report

    Too late. The article is in press and has been named after my cat. :P 

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