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Showing results for tags 'ectenaspis'.
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From the album: Trilobites of Minnesota Decorah/Platteville/Galena Formation
The first three pictures are Ectenaspis beckeri. I usually don't like to work on trilobites much because of their fragility and their 3d structures plus I don't know what tools that's available to use with it. How I came to the conclusions - it have continuous solid structures which means (edited Thorax) are missing from this specimen. The tip is missing and maybe parts of the head as well. It have a unusually elongated head and its (edited genal) spine appear to be curved. One theory I have is it is upside down. From Decorah formation. Don't know if its rare or uncommon as bottom half looks similar to others from the same family.-
- trilobite
- ordovician
- (and 5 more)
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I find myself unable to attach a species/genus name to the pair of trilobite pygidia I found in the Ibex area of Utah. The closest I can get is Ectenaspis judging from the form. The plate of two pygidia were found in the float of the Wah-Wah and Fillmore formations. They are weathered with some shell material, but not enough to see terracing or effacement. Found near the top of the ridge, they have to be Ordovican, but I can't be positive which formation it was situated. This genus is well know from the Maquoketa of Iowa and Decorah of Wisconsin, but I find no examples from elsewhere. A little help if someone has info. Thanks.
- 2 replies
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- ordovician
- utah trilobite
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From the album: Fayette County Iowa
This is a find from earlier this summer that I just got out tonight to start work on. I assumed when I collected it that it was an Isotelus Gigas and didn't give it much of an inspection. I did tonight though. Appears to actually be an Ectenaspis Sp. A Good surprise.- 7 comments
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- trilobite
- ordovician
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