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  • Clonograptus rigidus


    Images:

    TqB

    Taxonomy

    Graptolite

    Kingdom: Animalia
    Phylum: Hemichordata
    Class: Pterobranchia
    Order: Graptoloidea
    Family: Anisograptidae
    Genus: Clonograptus
    Species: Clonograptus rigidus
    Author Citation Hall 1858

    Geological Time Scale

    Eon: Phanerozoic
    Era: Paleozoic
    Period: Ordovician
    Epoch: Early
    International Age: probably Tremadocian

    Stratigraphy

    Fezouata Formation

    Biostratigraphy

    ? Araneograptus murrayi Zone

    Provenance

    Acquired by: Purchase/Trade

    Dimensions

    Diameter: 9.5 "

    Location

    25km north of Zagora
    Zagora Province
    Morocco

    Comments

    The thecae are more closely packed and shorter than in the similar Paradelograptus.

     

    Useful paper, with graptolite illustrations (Fig. 5), here: The Lower Ordovician Fezouata Konservat-Lagerstätte from Morocco




    User Feedback


    Tidgy's Dad

    Posted

    A simply astonishing specimen. :)

    Graptolites were incredible organisms. 

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    Tidgy's Dad

    Posted

    Yes, I had read about this, but you know what I mean, it's like this 'non-avian dinosaurs' business, gets a bit wearing having to clarify it all the time. 

    Anisograptids were incredible organisms. :D;)

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    fifbrindacier

    Posted

    Wow !

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    12 hours ago, Tidgy's Dad said:

    Yes, I had read about this, but you know what I mean, it's like this 'non-avian dinosaurs' business, gets a bit wearing having to clarify it all the time. 

    Anisograptids were incredible organisms. :D;)

    :D

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