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Showing results for tags 'wheeler shale formation'.
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Came across this cracking some shale...any help in id'ing it would be much appreciated!
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Well, i thought I'd show my primitive prepping skills. This is all rather unnecessary as Tony @ynothas already done this thread here and probably better and the pieces shown were kindly donated to me as well. So treat this as a repeat of what Tony does better. Hey ho. So these are the three pieces that Kind Tony sent me. 1. Notice this Elrathia kingii (1.2 cm long) has a break on the anterior margin (cause of death?) .and an upside down Itagnostus interstrictus (5.5 mm) above it and a piece of another to the right of it. 2. This Elrathia (1.8 cm long) has another ones cephalon stuck to its cephalon and some serious damage on the right side pleura. 3. This one is upside down in the matrix. (2.3 cm long) All my prepping was done balancing the specimens on my knee and using a jeweller's loupe to see and a board pin to do the actual prepping. Some water and saliva were also involved, but that was all. First I carefully cleaned as much of the matrix off the first two specimens as i could using the pin and then dug around the third piece so I could 'pop' it out of the matrix. Then I dug all around the other two specimens with the pin and popped them out of the matrix. Here is the third one popped out and with a bit of prep already completed. Sorry for the dreadful photo, but wifey and her camera phone weren't about so i started prepping and then took this photo with my computer as i was impatient to continue. When it was first popped only a tiny bit of the glabella was showing clear of matrix. Here i have popped the Itagnostus before popping the Elrathia.
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- agnostid
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From the album: MY FOSSIL Collection - Dpaul7
Peronopsis Trilobites Wheeler Shale Formation, House Range, Millard Co., Utah, USA Cambrian Era (510 Million Years Ago) Peronopsis (meaning "broach-like" or possibly "boot-like") is a genus of trilobite restricted to the Middle Cambrian. Its remains have been found in Asia, Australia, Europe, and North America. Like all Agnostida, members of the Peronopsidae are diminutive, with the headshield (or cephalon) and tailshield (or pygidium) of approximately the same size (or isopygous) and outline. Like all Agnostina, Peronopsidae have only two thorax segments. The cephalon and pygidium usually have a complete set of furrows. The preglabellar furrow - between the front and the central raised area of the cephalon (or glabella) - is lacking or incomplete. The cephalon carries no spines. The border around the pygidium is not forked. Kingdom: Animalia Phylum: Arthropoda Class: †Trilobita Order: †Agnostida Suborder: †Agnostina Superfamily: †Agnostoidea Family: †Peronopsidae Genus: †Peronopsis -
From the album: MY FOSSIL Collection - Dpaul7
Peronopsis Trilobites Wheeler Shale Formation, House Range, Millard Co., Utah, USA Cambrian Era (510 Million Years Ago) Peronopsis (meaning "broach-like" or possibly "boot-like") is a genus of trilobite restricted to the Middle Cambrian. Its remains have been found in Asia, Australia, Europe, and North America. Like all Agnostida, members of the Peronopsidae are diminutive, with the headshield (or cephalon) and tailshield (or pygidium) of approximately the same size (or isopygous) and outline. Like all Agnostina, Peronopsidae have only two thorax segments. The cephalon and pygidium usually have a complete set of furrows. The preglabellar furrow - between the front and the central raised area of the cephalon (or glabella) - is lacking or incomplete. The cephalon carries no spines. The border around the pygidium is not forked. Kingdom: Animalia Phylum: Arthropoda Class: †Trilobita Order: †Agnostida Suborder: †Agnostina Superfamily: †Agnostoidea Family: †Peronopsidae Genus: †Peronopsis -
From the album: MY FOSSIL Collection - Dpaul7
Peronopsis Trilobites Wheeler Shale Formation, House Range, Millard Co., Utah, USA Cambrian Era (510 Million Years Ago) Peronopsis (meaning "broach-like" or possibly "boot-like") is a genus of trilobite restricted to the Middle Cambrian. Its remains have been found in Asia, Australia, Europe, and North America. Like all Agnostida, members of the Peronopsidae are diminutive, with the headshield (or cephalon) and tailshield (or pygidium) of approximately the same size (or isopygous) and outline. Like all Agnostina, Peronopsidae have only two thorax segments. The cephalon and pygidium usually have a complete set of furrows. The preglabellar furrow - between the front and the central raised area of the cephalon (or glabella) - is lacking or incomplete. The cephalon carries no spines. The border around the pygidium is not forked. Kingdom: Animalia Phylum: Arthropoda Class: †Trilobita Order: †Agnostida Suborder: †Agnostina Superfamily: †Agnostoidea Family: †Peronopsidae Genus: †Peronopsis
