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Showing results for tags 'cephalon'.
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Made a short and first of the season visit to one of my honey holes. It is mostly large piles of regional riprap (a majority of it Dundee Fm). Although there isn't much of this specimen left in terms of the impression, the cephalon below the pygidium is throwing me. In this particular type of rock, I do find Proetus pygidia, which is why I'm leaning toward that as an ID. That being said, the border around the cephalon is making me second guess if it is perhaps a Dechenella. If I recall correctly, both species have a fairly distinct genal spine (but Proetus having a more blunted one). scratch that... it just may be another plain old Elderedgeops rana
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Hello y'all fossil heads!! Is there anyone out there that can help me obtain a good recognisable DALMANITE trilobite HEAD? Doesnt have to be mint or even complete as long as at least one eye is visible I gladly trade :-) Hope someone can help me out Cheers Pat
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Hey everyone, I thought that I would talk about trilobite anatomy. I have been using some complicated terms, and I want to make sure that we are all on the same page. So please watch the movie and enjoy!
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Have a nice ~2cm wide E. rana cephalon from the Penn Dixie site (~42.778860, ~-78.832180) that I collected earlier this summer. I have been practicing prepping trilo-bits and wanted to share my first "finished" result. There are still a few tiny places where I could've probably gotten a little more of the matrix out, but I went for 'better safe than sorry' given my low-grade equipment. Open to advice and/or suggestions!
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From the album: Marjum Formation
Bathyuriscus Cephalon, missing free cheeks about 3.5cm wide. Marjum Formation, Mid-Cambrian, outside Delta Utah.© ©2016 Zach Case
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From the album: Anomalocaris and friends.
The cephalon and part of the thorax of the Guangweicaris spinatus from the Guanshan Fauna (Lower Cambrian, 520-525myo). -
Is there a way to recognize the Olenellus subspecies by looking at the cephalons only? -Arild
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Fossils of the Gull River Formation, Black River Group This past weekend I came across a newly excavated site here in Kingston, Ontario. After spending a few hours over a few days here is what I collected. Cephelopod - Gull River Formation of the Black River Group, Kingston, Ontario 4.75" x (0.5" to 0.3") Conulariid - 0.75" x 0.5" - Gull River Formation of the Black River Group, Kingston, Ontario Thank you to Peter Lee and Nathan Thomas for identifying this for me. (Daimanella) - Brachiopod - Gull River Formation of the Black River Group, Kingston, Ontario 1.2" x 0.75" (Ceraurus Cephalon) Trilobite - Gull River Formation of the Black River Group, Kingston, Ontario 1" x 0.75" (Species Unidentifed Yet) Trilobite - Gull River Formation of the Black River Group, Kingston, Ontario 0.25" x 0.125" Collected several other specimens that I have not photographed. One in particular, an isotelus pygidium, that I still need to photograph. I'm always wanting to make sure I have the right species names. If you know of an error please let me know. I have been learning a lot from everyone on this forum. THANK YOU
