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Showing results for tags 'modocia'.
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A rangeomorph holdfast trace fossil from the Ediacara formation, Rawnsley quartzite of the Flinders Range, South Australia. This specimen is Medusina mawsoni, so called because it was until recently thought to be a jellyfish, but is now believed to be the attachment point of a fractal rangeomorph as Charniodiscus is the point of anchorage for Charnia sp. This one may have been the holdfast point for some species of Rangea. The diameter of the outer circle is 1.5 cm and the fossil is estimated to be 555 million years old.
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From the album: Pierson Cove // Marjum Formation Fossils
Weathered example of a rare Upper Cambrian ptychopariid. From Pierson Cove. -
Went out on a dig near Utah for Modocia typicalis with Gene Boardman one of the site managers at U-Dig. Gene is a really nice guy. He gifted the first trilobite of the day to me (I asked if he was sure and he said he had a few more). We split a lot of rock. A lot of work for a few beautiful bugs. Each image is captioned. Some are out of order. This is the great Gene Boardman. What I admire the most besides his genuine personality and big grin, is that he's a tenacious fossil digger. He kept reminding me to check every rock and to keep splitting it down as far as it would go. Here he has a thin slab of Marjum shale but he was able to find the first trilobite of the day with this fine split method. Really nice guy. The Marjum was not easy to split. It kept fracturing in multiple spots. The overburden was very brittle so we had to get down into the good, red layers. Here we are letting the rock "sweat" as Gene calls it. That means you set your chisels in the rock and let it naturally split and come back later to open up the bench. Lots of hard work. Gene helps run the U-Dig site and is known around the area for his enthusiasm for hunting trilobites and other fossils. The first Modocia typicalis was recovered 2.5 hrs. into the dig. It's small but complete and has some decent features. This is Gene's finest Modocia typicalus in his shop. He did an excellent preparation job. This big Modocia (over an inch) probably isn't a full specimen but has some great features. This smaller Modocia popped out of the same slab as the larger one. You can see it's impression on the left side. Another of Gene's Modocias. Gene gifted this M. typicalis after our days labors. Boy was I happy!
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Gene recovered this M. typicalis in excellent condition and gifted it to me while out in the field.
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Gene gifted this Modocia to me. Although it's not complete it's a fine specimen with some excellent details. I did gift him a box of fossils from Ohio and Maryland so I'll count this as a trade. These trilobites are relatively rare to find intact and complete. Gene claims one is found every 8-10 hours in the Marjum. The Marjum is brittle and unforgiving. Care must be taken to preserve these specimens in the field.
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From the album: Utah
Modocia typicalis from the Marjum formation. Gifted from Gene Boardman. -
From the album: Utah
Modocia typicalis from the Marjum formation. Gifted from Gene Boardman. -
From the album: Utah
Modocia typicalis from the Marjum formation. Gifted from Gene Boardman. -
From the album: Utah
Modocia typicalis from the Marjum formation. Gifted from Gene Boardman.